http://blog.ergoprise.com/choosing-best-sit-stand-desk-riser-body-type-1-year-later-new-risers/
This is an ergonomic focused side-by-side comparison of the Varidesk Pro Plus 36 Workstation and the S2S StandTall Workstation.
S2S StandTall URL: https://www.ergoprise.com/standtall-sit-stand-workstation/
Please see the side-by-side comparison: http://blog.ergoprise.com/side-by-side-sit-stand-desk-converters/
Side-by-side Spreadsheet: http://blog.ergoprise.com/wp-content/uploads/2016/03/Side-by-side-Sit-Stand-Workstation-Comparison-3-2-16.pdf
We are including a couple of links below from the #1 University Program (Cornell) and OSHA that confirms the best ergonomic posture and positions to enhance a more comfortable and pain office work environment:
http://ergo.human.cornell.edu/DEA6510/dea6512k/ideal_posture_1.jpg
https://www.osha.gov/SLTC/etools/computerworkstations/index.html
http://blog.ergoprise.com/side-by-side-sit-stand-desk-converters/