Where do you live, if you don't mind my asking?
I think that the feeling you feel is par for the polymer course. My RAMI felt like that, as did my Glock before I got rid of it. The poly is pretty amazing, and won't snap, break, or fall apart for anything. That said, after a couple hundred rounds to frame MAY start to bulge a little bit around the ejection port. This is normal but doesn't always happen.
When you think of a firearm, you think of a cold, hard, unforgiving piece of steel, right? So any movement can be unsettling. But with poly firearms it's a whole new ballgame. The upside is that if you can carry your firearm concealed (or even open) for a full day, you are saving 2 pounds from your hip. It makes a big difference. Personally I still prefer steel or alloy, but that's just me. You will like your RAMI. They are solid firearms. Especially if, as I suspect (or have read from your earlier posts
) if you got it in 9mm Para.
25 rounds a year...
Come live in Utah. They give you a 500 round box of .22lr when you leave the hospital after your original birthday!