The aldrich is an awesome pickup, its a little thin, but very dense, so it can do buttrock incredibly well, but it handles going into a bottom heavy amp well too, because it rounds out alot without getting rumbly. Very bitting, a lot like a JB but a bit tighter, while a bit tighter eq'd. Pretty hot, but it behaves a lot more like a medium output pickup, so you can crank it up to the strings and get some pretty gnarly output from the thing that stays very well defined, if you wanna fatten it up. I fucking love the shit out of mine in everything ive put it in: An ibanez RG320, a Carvin CT6 (ebony board, all mah with a maple cap), and now resides in my socal (alder body maple neck/board).
I cant recommend the thing highly enough