QR is a good suit and that's a great price. Just make sure it FITS properly. Fit is everything. It should be tight and smooth... if it's lose outside of the water it will be huge in the water.
Otherwise, I think if the water is cold enough to wear a wetsuit...sleeves are needed.
I got in my wetsuit in the pool the other day (outdoor apartments pool)... and all the skin that wasn't covered was freezing.
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather, to skid in broadside thoroughly used-up, totally worn out, and loudly proclaiming: WOW WHAT A RIDE!!!!"