GHF Trainwreck and Cheese?

I am thinking of getting the greenhouse feminized seeds from doc chronic. Anyone have any luck with these? they seem very cheap. $33 for 5 femenized seeds each. Thinking of trying the trainwreck and cheese. What do you guys think. Doc chronic is a good seed bank right?

I bought the trainwreck not the cheese yet but I would get the cheese directly from big buddha since greenhouse worked in collaboration with mike from big buddha and they are a bit cheaper too. on the greenhouse website in there cheese grow vid they admit this. But either way you won't be disappointed on either strain from whomever you decide for cheese. trainwreck is killer you should see the calyxes. even franco from greenhouse says 3 calyxes roll me a joint in the trainwreck grow vid, he's not lying.