I have a significant amount of GearWrench tools - probably 50% of my sockets, 6 or 7 ratchets, every size flex head ratchet up to 21mm/1", every fixed head up to 24mm/1-1/4", a big screwdriver set, and other random stuff.
What I like: their flex head wrenches! I rarely use the non-flex heads anymore. They are just stupid handy, very durable. I also really likes SOME of their ratchets. The older 1/4" and 3/8" drive ones are great... the new ones are crap, basically a Stanley/Kobalt knockoff.
What I don't like: I think their sockets are made of low quality, soft metal. I have some chrome plated thin wall 1/2" deepwells that I think I paid $10 for a set of at Menards years ago, no-name cheapos. I have beat on them relentlessly, they're on my impact 98% of the time and still going strong... contrast that with my GearWrench impact sockets, that are designed to be on an impact - they are so far lightly used and already some are loose on fasteners and obviously worn. I have also trashed a bunch of the deep well 3/8 metric sockets by using them on a Milwaukee cordless ratchet. I think they look nice but are maybe on par with Harbor Freight sockets. Not real impressed.
What I really, really, really do not like: It is somewhat hard to warranty a lot of their tools. I used to have Menards, Carquest, NAPA, Fastenal, Ace, Tractor Supply and a couple other local stores to exchange broken tools... now I've got NAPA and Fastenal. Everybody else quit carrying the GearWrench brand entirely apart from maybe a holiday special 5 piece wrench set. To add insult to injury, Fastenal often has very little in stock and is a week out if they order a replacement. NAPA is hit or miss but usually my go-to.
FWIW.......... Matco and GearWrench tools are both made by Apex Tool Group...and a lot of their tools are identical or very, very similar. I've got a fair amount of Matco tools too and the quality is about the same as GearWrench.
I used to be a GearWrench snob but the recent lack of retailers that carry the brand has really turned me off.