co2 machines any good what the deal

how much is it for a co2 machine how good are they and what would be the best make to go for would it be worth my while getting 1

no it is not worth getting

I just use a paintball gun. It doesn't compare to a propaine CO2 generator but it helps about 2-5%. Make sure you don't use it after the first 3 weeks of flowering.

what do u do shoot the paintball gun dry in you room and let the co2 come out?