Actually, they are quite comfortable, as long as they are the right size and breathable (the older, non-breathable ones were like being in your own personal sauna).

Keep it in the bag it came in - plastics out-gas as they age and become brittle - keeping them in an airtight bag slows this down a lot. Rinse it after sailing in salt water. Get a bottle of "Seal Saver" and coat the seals at least once a season. Lube the zipper with beeswax. And never, EVER get sunscreen on the latex seals. It's like slow acting battery acid on latex.

After you put it on, you "burp" the excess air out by squatting down and holding out the neck seal. When you let the seal go and stand back up, it's like you're vacuum-packed.

You'll want a couple of layers of polypropolyne long undies to go underneath it. Wicks the moisture away from your body so the suit can breathe it out.

It's pretty cool to hit the beach after a long, wet day on the water, peel off the suit and be warm and dry - while other people are freezing and struggling with nasty, wet and heavy wetsuits.