Well, I don't know about great. It's too soon to say. But it sure looks nice. (Same image, but over twice as big: nearly 1 Mb.)
(Sorry about your "7" key, by the way. I hope you get a suitable exchange.)
The ROM upgrade went well -- read everything in the upgrade instructions before starting. Note that the messages & prompts won't read exactly as documented, but they're close enough. And you may want to practice the paper clip "reset" first, just to get the feel of it.
The USB cable and connectivity software seem to work, and the program offers clear, helpful prompts. Note that, for some reason, downloading (for example) a .txt file is a different process than backup & restore, and while doing the latter the download/upload options are not active in the Conn4x menu. Just disconnect the backup/restore connection to make the down/upload options available.
I note that the calculator face and screen seem to be plastic, and hence will show wear over time! (I've a Casio wristwatch that I thought was entirely stainless steel when I bought it -- now I can see the gray plastic case beneath its once deceptive silvery finish.) So, you collectors, buy a second unit and don't use it! Also, I think putting the calculator in the case facing the front may be a good idea, to minimize scratching by the metal magnet clasp on the hinged case cover.
And, by the way, isn't this the best standard case ever provided with a calculator? I don't know of a better quality one, though I grant it is a bit bulky.
But the keyboard isn't perfect -- it does miss keystrokes -- some keys worse than others. It is amazing -- my cheapo little HP-10Bii has (so far, at least) a more reliable keyboard!?!? I like to believe it will be more consistent when it gets "broken in", but I'm not holding my breath.
All in all it is, I think, an elegant unit and a credible attempt to reestablish a presence.