I just put one on my Flash Gordon last weekend. It looks AMAZING and plays great. The only issue I'm having is that I still need to do a lot of adjustments due to the added height of the hardtop. I had to raise two of the ramps so the ball wouldn't get stuck at the lower spinners (I used some thin poster board screwed in on each end of the ramps to add a bit of height). If you have star rollovers, be REALLY careful to make them level with the hardtop, because mine settled after install and the ball gets stuck on them. I even had a ball get stuck on an inlane rollover, but a sharp nudge dislodged it. I'm glad I did the hardtop because my playfield was trashed, but you have to be prepared for some adjustments. A new playfield would be the ideal option, but you're looking at much more money and a hell of a lot more work. I still think it's a great product, and I'm thrilled they make it for Frontier, because I desperately want a Frontier and every one I've seen has a blown-out playfield.