hoping I'm not rehashing info, but when looking thru ANY sight with tritium you have to give your eyes time to adjust... it's (the tritium lit retical) not going to be very obvious if you walk out of a well lit room and into the dark and then look at the sight. Try sitting in a dark room for 15 minutes or more (depending on your own eyes) then look thru that tritium optic... that will give you some realistic idea of it.
No one sight/optic is going to work for EVERYONE, we're all to different.
I've been using tritium sights for over 20 years, since the first ACOGS came out, my first one was serial #1510 (4x32) To ME, other opinions vary, the 4x32 ACOG is one of the best scopes period, for one with magnafication... I've have a tripower TX30, to me the tritium doesn't seem as bright, for NVG compatibility Trijicon says.
Note some people see better with one color or another retical, i.e. "amber" vs. "red" TRY THEM OUT FIRST BEFORE BUYING!!! for me the amber is slow to pick up. and tended to wash out more often.
In my opinion for the standard PS90 optics one should always use the sights with both eyes open, takes practice, but you'll get a much better field of view and a better sense of wtf if going on around you.
I've got a EoTech, while it's a very nice peice of glass it has these problems (FOR ME):
1, it uses batteries
2, there never seems to be "one" setting that works all the time, maybe it's just with buttons there I gotta mess with them...
3, it uses batteries
but that said, it does what it's designed for.... but humm why not add a tritium light source... for when batteries fail (not if but when)
humm while we're wishing one that is user adjustable for light output.... on crap over engineering it now...
not sure now the holograph would work with tritium...
again see above - "no one scope will fit all needs"