I do not have a Sage and have never shot one, but there are a bunch of people at our archery club shooting them and I have not heard of a single issue. an outdoor store here in town is selling them as fast as they can get them in. it would make a fine loaner bow.
when 3 Rivers put the Greatree Goshawk on clearance a couple years back, a number of people at the club ended up with one of them. I have one and it is a fine bow for the money, and maybe a little zippier than the Sage, seems to have a little more hook in the recurve. one guy had the bottom limb crack almost immediately and made a phone call to Greatree, he had a complete new set of limbs in 3 days, no hassle and did not have to return the others. other than that, some of these guys have been shooting their Goshawks as their primary bow for a couple of years now and no issues. but it is a little more money than the Sage.
based on my experience with the Goshawk I would not hesitate to get a Firefox either.