I had to wait several months for mine when I bought, but it's worth the wait IMHO.
I think they're very good guns, no issues whatsoever with mine, highly accurate, comfortable to shoot and smooth. I only shoot slugs in mine, but others have used trap loads and no cycling problems.
I don't like pistol grips, so I got a regular stock.
The one thing - if the LOP is not to your liking, it is not easy to shorten these synthetic stocks. I did it, and I'm happy with how it turned out, but it took 3 weeks for me to build up my nerve to try. In the end, I figured TSE could always sell me another stock if I screw it up.
I'm also going to see about getting a regular magazine cap (and shorter mag spring?) so I can have the option of removing the extended mag tube as well. It's plugged anyhow, so might as well streamline a bit.
If you are not planning to hang a flashlight under the fore end, I suggest removing the rail.
The sights work very well, but the top rail gives you the option of mounting a lot of other systems.
I havent used the muzzle brake on mine yet, so I don't know if it helps or not. It is certainly heavy - that alone would prevent some flip.
Make sure you get a manual - and then send me a copy

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I had to embarrass myself by asking how to lock the bolt open. I'm not going to tell you how to do it either. Then I won't be the only one.
o, by the way, they are FUN!