It's the classic conundrum.
While you're in the low-normal range, most of us want to be in the high-normal range.
Your sexual function is probably adequate or more than adequate, but you feel cheated. I'd feel the same way.
As far as Andriol, it's a great steroid--theoretically. It doesn't aromatize or reduce much to speak of.
Trouble is, you have to take the 40 mg. capsule several times a day.
Even worse, most of the people I know who used it in the past (including me) noticed nothing from it.
Even blood tests failed to indicate a rise in T.
However, the Chinese combine it with teaseed oil and inject it intramuscularly and have had great results.
In Japan, it's been used as a suppository with equally good results, but you probably dont want to go there.
You could try Test boosters like TRIBEX or Alpha Male, but in lieu of that, I'd recommend plain ol' Testosterone Cypionate injections.