I have a TLR4 on my 23. I couldn't justify the extra expense of the $300+ model for my house gun.
It does everything it's supposed to do very well. Apparently some users have had trouble with the tiny laser adj screws, but I did not.
Shoot me an email address I can attach a pic to and I'll send it. I haven't used a photo-hosting website in a long time and don't feel like chasing down my password. :P