This is definitely the best harness I’ve found in terms of secure fit, comfort (as far as I can tell anyway) and construction quality.
If I was left wanting, it was for minor things:
I would strongly prefer a different color if it were available. If it’s only possible to offer a single color, I’d suggest black or another neutral color.
Also, I was surprised that there are not more sizes available. One of my cats is, shall we say, chonky at 16+ pounds. The M/L harness just barely fits on him, with only a bit of overlap on the velcro around his waist. Problem is, he’s a very active boy who will wriggle out of a harness if left to his devices. I would feel more confident in the security of his harness if the velcro overlapped another inch or two.