I use them so offer I replaced my sunex with snap on.
Cars have these funny designs where the shallow is too short and the deep is too long.
I would recommend buying a cheap set of gw and sunex and seeing if you use them.
Yup, buy cheaper sets first, to prove you'll use them, then upgrade.
I live and die by my mid-lengths. I have snap-on chrome and sunex impact. Great for manifold studs, exhaust clamps, really any nut on a car that has thread sticking through. As mentioned, they shine for jobs where a shallow/extension is too short or can't reach, but the deep is too long. Radiators, accessory drives and pumps, evap/vaccum parts hung on studs are where I find them to be required the most.
Personally, I like that they push the ratchet out from the work, leaving knuckle space. They're a little more stable on exhaust clamps than deeps, and if you have so much thread sticking out, that you need a full deep-well socket, you need a smaller clamp!
