Yeah, I never used the stealth armor in FO3 (only got Anchorage eariler this year, and apparently the end bugged out so there was no armor in the vault), and don't think I found any in OWB (hmmm).
But I've had a couple pieces of Chameleon layered armor, and that stealth effect is terrible. I hate having to stand up or move several feet (and maybe reveal myself) just so I can look at my pip-boy.