Sharkey’s is my most recent game acquired as well. I was looking for an EBD layout design that wasn’t EBD priced (so that meant Sharkey’s, EBD-LE, or Bad Girls, and Sharkey’s is what finally came up local in the price range I wanted).
I like the spotting feature, but as someone who isn’t a great player that probably explains part of that. With my settings (default I believe), there’s no ball save at the start, and only one tilt warning, so there are some added risks versus my other games, which is good because people do tend to play longer on it than anything else I own.
Worst part is the scoop. Ball spends too much time in there (thanks to the pops). That’s my only major dislike.
Game has gone over well with guests, for various reasons. Last time I had people over to play pinball, one did declare it their favorite game of any I’ve owned. But I do have a small collection, and no “A list” Williams games, so I guess you take what you can get with me. 
Anyway, I’m glad I got it.