I'd buy a scope separately so you can pick out exactly what you like.
Sound advice. That is exactly what I would do, because I am probably more particular about the scope than the rifle it is mounted to.
Gamo rifles look very nice and many are happy with them, but the deal breaker for me has been the crummy triggers all seem to share.
A fellow named Bob Werner in North Carolina markets a cure for that crummy Gamo trigger, and it works. I used to shoot a Gamo Shadow 1000 and installation of Mr. Werner's trigger blade totally transformed the gun.
Also, I've heard that factory parts can't be purchased from Gamo in the US, so that's something to think about if you like to fix your own stuff.
Since the horrid trigger can be addressed, this whole factory parts support deal is the deal breaker for me in continuing to shoot Gamo springers. Springs and mainseals are wear items on rifles of this type that will need periodic replacment. This is especially true if you shoot them frequently. With my R-9's, a phone call to Beeman and a few bucks has new springs and seals headed my way, and I can replace them myself fairly easily.
I've had a pile of air rifles over the years both cheap and expensive. The only new-bought ones I've had for many years without having to fiddle with and/or upgrade are my HW (or Beeman models of same) and RWS ones. Always happy with the triggers (especially on the HW's), accuracy, fit & finish. Never had a part other than springs/seals need replacing, and those are perishable parts that eventually have to be changed out on any spring gun.
My experience since I got into the adult airgun hobby back in the early 80s has been similar, except I've never actually owned an RWS / Diana product. I've shot plenty of them, but they don't do for me what an R -Series Beeman does.
However, the cost of even mid-priced German spring guns today are pretty dang astronomicable if you ask me. I'd still bite the bullet and get another if I were in the market though...
And that is exactly what I would do, too. I'd either buy a brand new .20 R-9 or, barring that if for some reason they cease production, importation, or both, scour the Internet in search of a well loved "pre-owned" one. But since I've got one, it isn't too likely that I'll be needing another. With the R- series Beemans, at least in my experience, there is no "coulda woulda shoulda" involved in the ownership experience. Only complete satisfaction.
-JP