PinMonk - If you want to claim that your product is great because of X,Y and Z, that's awesome. It's your right to acknowledge you have a great product, and you should be proud. I'm sure you are. But it's not good business to promote your product by cutting your competitor off at the knees. Competition is nothing new in business. Let your product speak for itself. You're going to sell more units by talking up your product, not by talking the other guy's down.
Just look at Stern. Forever they were the only game in town. And in what feels like the blink of an eye, they have 3 serious competitors. To combat it, they upped their game (pun-intended). They started producing better games, hired more talent, created new innovations, increased production. Never once have you ever heard a Stern employee talk badly about Spooky, JJP, or American Pinball. At least, not publicly. Look how that's working out for them.
I can site my own business as well. When I owned Reciprocal Skateboards NYC in 2007, i was the only place in all of NYC w a collector operated pinball arcade. We were key in bringing pinball in NYC back from the dead. I did that for years w no competition. All of a sudden, a new place in Brooklyn saw the success I was having, and started doing a very similar thing. Except they bought lots more machines, and put me in a position that made me look inferior. Did i feel like my idea had been copied? Maybe. But instead of saying bad things about their business, methods and upkeep, I decided I had to work harder to be the best. As good as I was before, I had to be better. And I carry that tradition still today, with my more recent establishment. No matter what good things people say about the games at my establishment, I can always add another unique game, make it play better than anyone else's, and give people a better experience for their money. I only speak about myself, and what I do. What the competition does is their business. And I know I respect myself more for it. I'll never be the only pinball place in town anymore, and I'm fine with that. I just strive to be the greatest.
I know if you take the same approach, you'll be better for it. You have a good product. Rest comfortably enough on that. Then strive to keep making it better.