Mine certainly wasn't. Bought it new in 2019 and had many quality control issues in the first week of use . I put maybe 200 rounds before I sent it back. The safety was 50/50 right of the bat, some time engaging , other times no and I did fully cock the gun. It wasn't safe to shot. The cocking leaver fell of the gun on about the 10'th shot. The spring ball on the end of the gun that secures the cocking leaver came out and I lost the little spring that was in behind it. Cocking leaver actually bent in the middle and the gun shot horrible, 1'1/2 " group. 25 yards. I'll stop there but you get the picture, very disappointing to say the least.
Fast forward to now. My gun is incredibly accurate, so much so that it's not even my first choice to shoot anymore. It's almost no challenge to hit very small targets. The furthest range on my property is 51 yards. On a good day from a bench rest and very little wind the TX can easily and consistently hit 6-7 mm wide chunks of aluminum resting in golf tees pretty well every time. You are looking at the end of a AAA battery at 51 yards. That's how accurate this gun is. What changed? A lot.
Firstly I learned how to completely dismantle and re assemble the gun. This was important and very easy to do even for a very non mechanical guy like myself. I purchased over 25 different quality pellets with different head sizes and found what the barrel liked best. I learned how to hold the gun properly and purchased a great scope, Hawke 30 WA 6-24x50 and attached it with high quality mounts. I installed a Vortek PG4 drop in kit and polished to a mirror finish the piston , piston sleeve everything I could, and properly lubricated the spring and seals. I have 3 other springers, a Beeman R9 with HO Vortek kit, HW95 with 12ft/lb Vortek kit and recently purchased a Diana 54. This Diana was also a complete disaster, much worse than the initial experience with the TX. I had it for about 3 days and sent it back to the Diana Warranty Department. That was about 2 months ago and have yet to get it back. I think for me, the 54 will be a bit more of a challenge to take apart which eventually I will do. There isn't a lot how to U Tubes available for this gun.
Concerning the TX and my other guns, I believe the right pellet and Vortek kits I installed made the biggest difference. Dismantling and reassembling the HW and R9 was not as easy for me but doable. I built a home made spring press which was a must for the spring reassembly
I believe my TX 200 will always be the most consistently accurate springer air rifle I will ever own.