I've got a bunch of Fitco/Futong scopes. Overall, I'm pretty happy. I've got the 1.5-4.5x 20 on a spring-piston air rifle, and have had for almost 2 years and about 2000 shots, still hanging on!
My oldest Futong is an 8x-32x 50 that has been on my M14 for several hundred shots, my 6.5-'06 for a couple hundred shots and my .30-'06 for about 100 shots, still works great.
I've got a 3x-9x 42 compact on my wife's .22 pump that's been there about 4 years, it's got some spherical aberation that makes staring through it for a long time unpleasant for me (like waiting for that last gopher to stick his head up), but some people don't even see the problem on a quick inspection.
I've got a 4x-16x 50 side focus on my .22 bolt-gun (it was from the first run of the Fitco side-focus scopes, and is labeled as a 6x-24x but it's not)
I've got a 3x-9x 50 that I keep in rings and sighted in as the spare scope for my .30-'06 (the regular scope is a Bushnell but if it becomes non-functional on a hunting trip, I can just swap-on the Fitco, check the zero with the bore sighter, and I'm back in business).
Plus I've got a couple that are still in their boxes, that I bought when they were on sale.
I've had problems with 2 scopes from Futong right out of the box, both went back and I got prompt refunds.
The only one I had fail on a rifle, had the occular lens broken when I picked-up a case I thought was closed, the rifle slid-out, and landed on the occular lens on a concrete staircase.
Had I spent $500+ on the scope it might have been covered under warranty, as it was a $100 scope, I pitched it into the tall grass and got another.