I have a cordless jobbie i bought about 6 or 7 years ago, wasn't cheap but wasn't professional use price either, the times i've needed it the thing has always done what i asked of it.
The first time i ever came across a Snap On product was about 30 years ago when i'm removing the gearbox from a Supra, top bell housing 14mm bolt head was too shallow by far, sod that, almost impossible to get to and tight as hell, no chance of getting a socket on and the only spanner that would fit there was an angled combi and that started to round off the bolt head, bollocks.
Anyway, i happened to have one single Snap On six sided socket which i had genuinely found and it was 14mm 3/8th drive, very slim which was needed.
By lowering the gearbox down still connected to engine i managed with about 4 extensions to get purchase with that socket over the top of the box from behind, crack, it undid the bolt, i'd have been buggered without it and would have had to take engine and box out complete and cut the bolt head off.
No i didn't buy a Snap On set (i still have that 14mm Snap On), but i do have a decent set of Britool 6 siders for general use and a full set of impact sockets for those stubborn buggers and that one experience alone confirmed if needed that quality shines it when the going gets tough.