I have a Klimacomfort 2 jacket (worn with the first generation pants).
Pros: It is waterproof and breathes...The hood stops rain going down my neck when I turn my head changing lanes. The double cuff arrangement is a nice feature. The jacket can be worn as a normal (but baggy) rain jacket when off the bike (one of a number of advantages over using the Rallye jacket inner liner).
Cons: Price... Packs larger than other rain suits perhaps? The features mentioned above add bulk I suppose.
Overall, I'm happy with the jacket. I can't imagine how a rain jacket could be better, unless it was cheaper.
For info, I'm using a size XL over a size 56 Rallye Pro 2 jacket. It is a snug fit.