Here is a link to SGIA's Digital Equipment Evaluation:
SGIA - Digital Equipment Evaluation Reports
Direct-to-garment machine manufacturers and distributors had the option to have Johnny Shell from SGIA come by their facility and do an assessment on print times, color range, and some other factors that are important when buying a dtg printer. Per their website: "SGIA's Digital Equipment Evaluations give you raw, unbiased information about the latest digital equipment devices on the market."
You do have to be a member of SGIA to view the reports, but there is alot of good information on the machines that participated.