I've got maybe 100 days in mine. Love it. Zipper takes some getting used to.
Obvious advantages KSC hit- less gear when traveling, and cheaper than buying a separate dry top/dry suit. It will also never take one of your buddies to help you zip/unzip your drysuit. It is super easy to tell when the zipper is fully closed/water tight.
Downsides- when using it only as a dry top, the zipper & zipper cloth cover flap are a bit bulky to pull a spray skirt tunnel over. As a drysuit- I like to wear my throwbag around my waist, in my lap, under the sprayskirt. Due to the zipper "box," where the zipper begins/terminates, that's slightly less comfy, though still plenty doable. I wish they would refine the zipper beginning/terminus box a bit. Not in love with a steel bolt perpendicular to my body at my waist on principal. Taking a whiz takes slightly more effort, as the zipper is up at the waist. Lining up the zipper to make sure it's begun in the exact right spot (can skip a tooth, then the ends don't line up) takes a little bit of practice.
If I'm not wearing my throwbag on my waist, zero zipper box complaints once I'm in the boat.
I find the care and feeding is about the same as any dry top these days. Wax the zipper occasionally and you're good to go.
I wander/travel to a lot of different kayaking spots, and for me it's excellent.
If I was only needing a dry top or only needing a dry suit though, I would consider buying the GMER or Rogue (the two items I replaced with the Idol).