I have the 4-16x50 Millett TRS-1 on my 204. I'd describe it as bulky and heavy. The glass is good enough for a cheap Chinese scope, but a couple mechanical aspects leave a little to be desired.
1. On mine, I found the adjustable ocular lens tube wiggles unless screwed in tight to one end of it's focus range. Luckily for me, it works fine that way, but for a long time, since I don't wear glasses, I assumed I should leave it at the middle of it's focus range. Because there was wiggle in the way the threads fit each other, I believe it was causing a lot of inconsistency, even from one shot to the next. I thought it was parallax issues, and not having a consistent cheek weld, and it may be in part, but I also blame that loose fitting ocular lens tube.
2. On mine, the locks on the windage/elevation turrets are sticky. When you screw down the lock, it pushes a ring around the turret up, locking it. Sometimes after tightening too tight, I loosen the nut, and the ring doesn't drop, keeping the turret locked. I have to grab the ring and wiggle back and forth on the turret to get it to pop loose. I just leave them loose now. They don't seem to go anywhere. The repeatability of adjustments have been acceptable for how cheap he scope is.
3. On mine, the side focus / parallax adjustment knob and magnification setting knob are both VERY stiff in cold weather, but they've got better since I've had it. Luckily they're huge (kind of ugly), so you can get a good grip on them.
4. On mine, there's no indicator on the turrets to indicate how many revolutions they've turned. A feature some may need.
5. On mine, I have found the green illuminated reticle to be more useful than black crosshairs at night, but only at the minimum illumination setting. Any brighter than setting 1 (labeled NV) and the whole lens is filled with bright green light you can't see through to your target. This also highlights the little particles of debris inside the scope. !!!!
I paid $280 shipped for my TRS-1, and could probably feel comfortable selling it to someone for like $100 when I can upgrade. Just don't pay a lot for them.
It may be time I contact Bushnell about sending it in for some warranty work too. I guess they can lower the illumination brightness range of the reticle. They also have improved turrets with revolution indicators on them now, and a better set screw system to lock in your zero. What I was reading online was half of those sending thing in to Millett 2 years ago never saw their scope again. I've tried dealing with Bushnell on the phone and given up, but this thread makes me think about trying again. I'll post here what happens this time around.