$199 for front mezz is a remarkably good price for Hamilton right now. I would snatch them up.
If you want a sense of the view, Ticketmaster I believe has a good selection of photos, or you can use the website View From My Seat. Most seats are great there, especially mid-orchestra because of the stadium seating, but as someone else posted, rear orchestra is a bit obstructed.
I finally saw Hamilton in London from the back row of the balcony (third level), and we also had the upper tier of the set cut off, but you don’t miss anything important.