Vast majority of my hand tools - ratchets, sockets, wrenches, screwdrivers, pliers, tap & die - are Craftsman. But.... They're almost all 40 or more years old. They have served me well for a ton of motorcycle, car, and household repairs. I've only had to return one tool for warranty replacement that I can recall.
Like rharman, the vast majority of my hand tools are Craftsman.
Only mine are 50+ years old.
From a very early age I had access to tools and the inspiration to use them. In fairly short order, I was gifted w/ a few Craftsman tools as a Christmas present - probably to forestall raids on the tool collections of others. Not too long after, I received a Craftsman 6-drawer top chest (Beach?). In time I bought a 2-drawer riser and a 8-drawer roll cab to put under the top chest. I filled that box to the brim and put what wouldn't fit into cabinets and on shelves elsewhere in the garage. Besides the hand tools (imperial and metric), there were also timing lights, engine analyzers, and other items.
I still have it all. (Actually, there are a sizable number of duplications now because of a collection I inherited.) The only Craftsman tool I bought that truly disappointed me was the set of ratcheting box-end wrenches - I still have them, too. I don't have a single regret about any other Craftsman item I own.
I know Snap-On, Bluepoint, Proto, Mac, S-K and other hand tools. I have some specialty tools from two or more of them - tools that were not only costly, but somewhat difficult to find out about and subsequently purchase.
Like booze in the days of prohibition: I needed to know someone, who knew someone; then I needed to go to an industrial area in a remote part of town, knock three times on the side door of a nondescript building and say the secret password to be let in to the order desk area. Nothing was out on display. My own catalog? Ha ! Browse the 3 y/o dog-eared one they kept under the counter, or forget about it. How much for that? "If you have to ask, kid ..."
While I envied SOME features of some of the pro hand tools, opportunities and life choices established that I could get further along in other ways than by earning a living with my tools.
I was close enough to the trades-culture to recognize the role that marketing, peer pressure and one-upsmanship played in brand selection and loyalty. Your position in the shop pecking order, opportunities for career advancement and so on were in no small part established by your taste in 'toolery'. Proven skill and established qualifications combined w/ a selection of mixed 2nd/3rd tier tools in a battered box, usually took a back seat to someone fitted out w/ one or more of most everything a 1st tier supplier offered (w/ NO off-brand contamination) all bundled into a matching multi-story roll cab - regardless of the latter guy's come-back ratio or ability to outperform flat rates.
That is a sucker's game to find yourself trapped in. Just look at listings for used Snap-On, Matco or similar tool storage units for an idea of how much of a price premium people have willingly paid to purchase some of the cachet associated w/ certain brands. Extrapolate the storage unit price premium out to include all the different types of tools and instruments a tech/specialist is going to need - it makes for an eye-watering career expediture.
The money I spent on Craftsman tools back in the day sure worked out well for me.