The Good
Reagents are easy to prep or already 1X. Two vials of standard allows for breaking the kit into two assays.
The Bad
10 ml of TMB and Stop solution is cutting it close, but was not an issue. Really nothing was bad.
The Bottom Line
I'd recommend the kit. I did the assay at room temperature (instead of the recommended 37C), b/c I didn't want to deal with going back and forth into the room that houses our 37C incubator. Doing the assay at room temperature takes a bit longer (for the incubations). The data looked good (based on R2 for standard curve and CV% for replicates. In the image Columns A and B are the standard curve.