I bought the 1/4 and 3/8 long handle flex. They seem to be ok, action is nice, but the damn heads are too loose. I put some shims on the 1/4 one and it's held up for a while now, but the 3/8 is way too loose. I might try messing with it later on.
On a side note... Anyone know if the 1/2 breaker bar handle would work with the 1/2 head?
I don't know for sure but its a possibility. I took a 3/8 breaker bar of theirs and out a ratchet head on it to have an 18in long ratchet. There are some posts here that call it the frankenratchet