Hi clisby-
I have a T100 and love it. I bought it for cc, what attracted me was the smooth sides. I am really impressed by the accuracy and shootability. A couple of differences when compared to the c100.
1) Has funny non Cz front sight so swapping sights more difficult.
2) The factory trigger on mine is better than my buddies c100 (ymmv) could be gun comparison not a model comparison.
3) Finding a rigid holster is a little tougher, there aren't a lot of quick off the shelf options or at least I couldn't find any that I liked. I found Zahal.org had the best selection, you'll need to look for the baby desert eagle semi-compact size or the Jericho 941 fs/rs semi-compact (3.9" barrel). I went with a Frontline Trilayer holster which should be arriving from Israel this upcoming week(s). I'll report back fit and finish when it arrives.
http://www.zahal.org/products/front-line-trilayer-holster-for-jericho-941-baby-eagle?path_parent=218389Bottom line, IMO the c100 is easier to find aftermarket parts & accessories because of the close similarities to the cz75 compact. For me, I really like the slab sides and cleaner look so I went with the T-100. From what I can gather both use the sames springs, magazines, and grips. You really can't go wrong with either.
Schecky and Brian are working on solutions for the T-100 that should remedy some of the short comings. I can't wait until they're available!