I've tested a bunch of data tools (apollo, findthatlead, custom lists, etc).

For the price, LeadRocks is right up there among the best. I'm hoping the team behind it continues to improve features (eg, more granular search categories), and I have full belief they will.

No brainer really. Just check out their current pricing for non-AS buyers... do you really want to be stuck paying those prices monthly, when you can grab it now for a low LTD?