I have had this suit for 16 years now, and absolutely love it! It is very comfortable, does everything. It is so easy to put on, there is never an excuse for not wearing it even on short trips. For touring, it is great; lots of pockets, good ventilation. I don't have to carry a jacket; if it is cool, I can unzip the jacket and wear it while not riding. Waterproof, pockets where you want them, great protection, and after 16 years obviously very durable; very hard to beat. I purchased a Darien suit a while back, and hardly ever wear it; I like this suit much better. I'll be getting another Aerostich when this one finally gets hung up for the last time. (Posted on 9/21/09)
I bought the two-piece but if I had it to do over again I might get a Darien instead.
First off these are great suits and very durable, the two piece can come in handy it just depends on how you use it.
If you plan to constantly be zipping and unzipping the jacket and pants together you may be disappointed, it isn't that simple as lining everything up and getting it to zip takes time. It does work well for some situations, for istance if you are commuting everyday you can zip it together and take it all off at once, then when you go on a pleasure ride you can unzip the pants and jacket so you can just take off the jacket as needed.
The other comment I will make is that it is not just as easy as the one-piece when zipped together, there are two separate zippers one for pants and one for jacket. Whereas the one-piece just has one zipper that goes all the way from top to bottom. So not quite as easy but pretty close.
If you really need a two-piece and don't expect to need to zip it all together very often I would recommend going with the Darien. If you are rather uncommon size like me, large shoulders but smaller waist, the Roadcrafter when zipped together will fit a little strange due to the larger jacket zipper not quite matching the smaller waist one... looks like I am pregnant. (Posted on 9/11/09)