Ive been using mine through the entire process minus the first 2 months they were outside and I havent had any problems with them. The only complaint Ive had is the amount of bud produced. I see a lot of room left on the main stem that should be covered by bud but isnt. I blame this mostly on my coverage though because Im growing in a closet and dont have proper feflective material and never added more lights as the plants got taller. I plan on correcting this in my next grow by using a cabinet, adding more lights for better coverage and using more, better reflective material.
IMO, if youre pressed for space, have heat issues and arent concerned with a super high yield, cfls are fine. If you want a perfect grow with a high yield and keeping your grow space cool is not an issue, go with the hps.
Personally, If I had a seperate room with an a/c unit and was not concerned with power consumption, I would be using hps too but it doesnt fit my needs and cfls seem to work fine. Hope that helps.
