I've heard many agents on this forum who work FL who get a LOT more leads than 15/week. Anything less than 25/week is probably not enough.
I've also learned the hard way to NEVER rely on only one lead source, especially an IMO
. Not saying you shouldn't buy from them at all. Just have 2-3 different sources and keep 'em flowing with FRESH leads EVERY week (and I mean FRESH...not aged). If one source gets screwed up (for some strange reason), then you'll have another reliable supply of fresh leads that week and you won't skip a beat.
Several years ago on this forum, I read a post from Travis Tubbs about getting FRESH DM leads every single week. I've worked all kinds of leads over the years and in my experience, his post has been 100% correct