Snap On stuff is a little lacking in ability. Unless you spend £7200 (fucking extortion for what it is to be honest) on a Verus. Even then it feels like a big Solus. I find the Snap On stuff a pain to use to be honest. The personality keys are a pain in the arse compared to a proper multiplexer.
The Launch X431 seemed as bad as the Snap On stuff when I had it for a week.
DEC Superscan is good but has no information system that I am aware of. It has a lot of ability and capability and is fantastic on the French stuff but is lacking in coverage on other stuff (that is being rectified apparently).
Delphi have some fantastic diagnostic tools. I had a DS100E PDA and bluetooth multiplexer on loan for a month and it wiped the floor with the Solus. So much easier to use! Well worth the 1200 or so quid they charge for it. I'd have one anyday if I hadn't just bought something else. Have a look below.
http://iam.delphi.com/en-gb/servicea...sticsolutions/
TEXA is damn good gear, but only if you do a lot with commercial vehicles. Not so good on cars but they're getting better. Real easy to use stuff. These tools will be fantastic if they expand their car software a bit more.
http://www.texa.co.uk/index.asp
Bosch KTS. I've just spent 6k including the trolley and updates for the top end KTS670 and it is by far the best tool I've used. The information that is on it is fantastic. I'm connecting to allsorts without issue. Fantastic gear and I'd advise you look at the lower end KTS systems if you can't afford a 670. Ether the 340 or 200.
http://www.boschautoparts.co.uk/teKT...ew.asp?c=2&d=2
If you're on a budget, my advice is a low end Bosch unit or a Delphi. If you don't buy the Bosch unit, I'd recommend you buy the ESItronic data system.
http://www.boschautoparts.co.uk/esMain.asp?c=2&d=2