Received my Waterfield case yesterday. With the Verizon case removed, it fits the Droid perfectly. Purchased it mainly because I have other Waterfield products and have always been impressed by their quality.
Pros:
() Stylish. Definitely non-geeky. Goes well with a suit or (I presume) an evening bag. Meets Waterfield's usual high standard of looks, feel, and construction.
() Pocket is a nice touch. Stretchy material will hold a couple of credit cards and a driver's license, eliminating the need for a wallet on special occasions.
Cons:
() Unsure, as yet, if it will work with the Seidio case. I was able to stretch it (barely) enough to cram the phone with the Verizon case into it, but it would not have been a practical approach.
() Removal is a bit tricky and since it's a sleeve it has to be completely removed to use the phone. If you're a klutz (and I am), it may not be the case for you, especially if the phone must be used without a case of any kind.
() Wish it came in some other colors. The black is stylish but I've already misplaced the case twice because it's difficult to see in a dimly lit room.
() Can it "fall out" of the sleeve? Yes. If you pick it up by the bottom corner, the phone will slide out. (At least mine will after having tried it with the Verizon case.) So, as the doctor says, "If it hurts when you do that, don't do that."
Bottom line is that I'll see if it can be used with my forthcoming Seidio case. Regardless, I may use it for "dress up" occasions but unlikely to use it on a daily basis.