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Great review video of MendelMax 2.0 by ZennmasterM.

MendelMax 2.0 description from RepRap wiki:

The new MendelMax 2 is a complete reinvention of the MendelMax. It makes the MendelMax faster to build, easier to source and even better looking than before.

Design
The MendelMax 2 includes a completely redesigned frame, made from aluminum extrusions and primarily flat plates. These plates can be cut from aluminum, printed, laser cut from plastic, or hand cut with a scroll saw or a coping saw (making this arguably the most accessible DIY reprap ever). A hand cut MendelMax 2 will virtually function identically to a custom machined one. There is no longer a reason to see your hand built machine as merely a means to an end.
Triangles are a smart choice for the gantry, both functionally and aesthetically. From a design standpoint, I wanted the MendelMax to still be visibly a Mendel descendent, while not letting the shape get in the way of improvements. By switching to a right-triangle design, the MendelMax 2.0 gains ~50mm more z-axis movement (the exact amount will depend on your extruder choice). The new design results in a very open, unobstructed print area.

Specifications

• Print Area Dimensions: 230 mm x 310 mm x 225 mm
• Print Area: 16042.5 cm3
• Printer Dimensions: 450 mm x 340 mm x 460 mm
• Usable Maximum Print Speed: 150mm/sec or more depending on the part, print material, and extruder
• Usable Maximum Movement Speed: 500+ mm/sec
• Layer Height: .1-.4mm, user selectable. Lower layer heights are also possible.
• X & Y Axis Resolution: .0125mm
• Frame: All aluminum
• Movement: linear rail (X and Y axis), precision shafting and bushing (Z axis)
• Price: $1595 for complete kit

Source:

https://www.youtube.com/user/ZennmasterM?feature=watch

http://reprap.org/wiki/MendelMax_2

Another great review by Barnacules of Ultimaker 2. He goes trough unboxing, setup, calibration, leveling and first printing. His machine came delivered with on extruder fan broken. The leveling process seems easy with adjustment screws on the bottom of the print bed.

From video description:

The Ultimaker 2
To operate the Ultimaker 2 you don't need any specific technical knowledge. Every part has been redesigned to create one of the highest performing 3D printer available on the market, but also a very reliable one.

Ultimaker 2 specifications
Easy to use and reliable
Designed for non-expert and expert
Larger build envelope
Heated bed
Low cost material
Open source
Just like the Original the Ultimaker 2 will remain open source. We dare to share our knowledge because we believe we can achieve even more when working together.
Easy to use and reliable
To operate the Ultimaker 2 you don't need any specific technological knowledge. With its 49 decibel it's a quiet machine. Because the electronics are bundled the Ultimaker 2 is stable and reliable. With its nice design the Ultimaker 2 is suitable in any working or living interior.
Designed for non-expert and expert
We've made the Ultimaker 2 to be as easy as possible. You don't need to have a huge technological background to understand our printer. At the same time we've developed the printer in a way that it's still interesting for experts to work and create with.
Larger build ratio
We've managed to get an even better print-to-size ratio. This means the printer size has remained the same, and the print envelope became bigger.
Low cost material
Beside the fact that the Ultimaker doesn't use a lot of power, the material you use to print is also low cost. This makes the use of an Ultimaker very affordable.
Layer resolution: up to 20 micron
Build volume: 23 x 22.5 x 20.5 cm
Position precision X Y Z: 12.5 / 12.5 / 5 micron
Print speed: 30 mm/s - 300 mm/s
Travel speed: 30 mm/s - 350 mm/s
Recommended filament diameter: 2.85 mm
Nozzle diameter: 0.4 mm
Stand-alone SD-card printing
WiFi printing ready (future upgradeable)
Software: Cura - Official Ultimaker
Print technology: Fused filament fabrication (FFF)
Frame dimension X Y Z: 35.7 / 34.2 / 38.8 cm (no filament)
Frame dimension X Y Z: 49.2 / 34.2 / 55.8 cm (with filament)
Operation nozzle temperature: 180° - 260° C
Operation heated bed temperature: 50° - 100° C
Ambient operation temperature: 15° - 32° C
Storage temperature: 0° - 32° C
AC input: 100 - 240 V / ~4 AMPS / 50 - 60 HZ / 221 watt max.
Power requirements: 24 V DC @ 9.2 AMPS
Usage cost: ~ €0.05 / cm3 (material and power)

Source:

https://www.youtube.com/user/barnacules1?feature=watch

MAKE has released their 3d printers buyers guide for 2013. There is validity in their methods and some valuable data, but, suprise suprise, their Replicator 2 is the BEST in prosumer section.
Whole 3d printing community and market needs better, transparent and independent  mechanism for 3d printer review, grading and quality control.




Here are the results on the MAKEs web page:

http://makezine.com/magazine/guide-to-3d-printing-2014/3d-printer-overview-how-they-compare/

Very detailed review by: http://www.youtube.com/user/hobbyprojectsite?feature=watch (not so positive on the printer performance)

Very detailed and informative video series by ZennmasterM. He gives some very useful experience based tips and information for improving it.

In-depth review of Makerfarm Prusa i3 kit:







Firmware setup, tuning and printer calibration




After six weeks of using it
Print those backup parts!




Review of Magma hot end