Co2 Boost bucket

what do you think about the CO2 boost bucket systems ?? what would you rate it as?

trying to set up Co2 in my grow room and was wondering if they were worth a shit ? anyone ? if not what kind of CO2 setup do you run? lookin into also the fuzzy logic greenhouse controler but dont have all the funds just yet. if anyone has used these buckets please let me know if they work

bump... (I'm wondering the same thing).

Peace.

I was interested in them too. Until I read somewhere all thats in the bucket is mushroom compost and saw dust at a 100 dollar for refill's,I'd just make my own.but thats me.