If you are interested in buying a drysuit...
1) go the the shops and rent a couple different kinds they have if they have rentals available. Can’t get much better opinion on a suit than actually diving it.
2) if not pressed for time or don’t need it this winter try some different suits at demo days. DUI and Whites both have demo days that travel the country.
I did my AOW cert in a OS suit and ya it kept me dry but just didn’t fit right. It felt like I had a huge gut I was carrying around. The waist was entirely too big. I went to the DUI demo and tried that and knew with the fit; that was the suit for me.