The architecture featured in Hypothermia is of a good standard, although by no means the best you'll come across. It is very much in a similar style to that of cyrus258's last map, Bandcamp. Overall, visually the map is very accomplished. The gameplay itself can be tremendous fun. Nobody can dominate proceedings with a single weapon, largely due to the fact that item placement is particularly good.
Connectivity is also fine, with plenty of routes to get about.
It can take a while to learn the layout, but once you do you'll have no problems. Now, onto the cons. Luckily it isn't too bad a problem in most areas, although wpoly does peak at over 1000 at it's worst.