Other brands of this "Reverse Gear" locking flex bit ratchet to look for are USAG (same as Facom but usually cheaper), Würth (they had one in black, too), KS Tools, Deen, and Tone. KS Tools is often the most affordable, through amazon.de, and seems no less in quality or workmanship than the others. I have several of these in different places, because they're so useful. Here's a comparison between Facom/USAG and KS Tools. There are likely others as well.
Depends. Nothing is more versatile, due to the small head dimensions, locking flex, and spinner ring. Feel is better than Snapon or the old Stahlwille 20T or 22T, maybe a notch below Stahlwille 80T or Nepros 90T, and not close to Koken. If there's more space to work I'll generally use my much larger Koken instead (below, with the Hazet handle pressed on).
I knew someone would have a list!
Yes, agreed with respect to the small head!
I have the Wera as well, which has the same head with a Wera handle. Superb little tool, which I show here compared to the Stahlwille. The small dimensions are obvious.
They thought about the ergonomics too, as they’re easy to use with one finger behind the bit to hold it into the screw head!
The Stahlwille “N” models with the fine tooth ratchets are beautifully smooth, and I like the option of the all metal handle too, but yes, you pay with more bulk!
The Hazet feel very nice, and are perhaps my current favourites. You can’t see well in my pic, but the short handle Hazet’s are actually the “bent handle” style, which works very well in practice!
The Snap On roto head, with the old style “hard handle” is exactly the tool I have, and it’s great. Super smooth, and can use it either as a bit ratchet or a screwdriver style bit driver. A good versatile tool. It is more bulky than the others shown, so tends to live in my shop.
Price is very much an issue with anything Snap On at the moment. List price on the roto head, which I didn’t (and wouldn’t) pay is roughly ten times what the Wera cost me! Koken anything always scores well on price to performance, but I don’t own any of their bit ratchets.
I generally have either the Wera or the Short Stahlwille in my work jacket. Takes up no space, and it’s amazing how many times I reach for it in a day!
The GJ answer, of course, is to have one of each!