Married to an oldtime mechanic (he is 70 years old) and therefor he is not so custom to computers and OBD.
Me got my driving licence 12 years ago and learning my best =)
This is what I have got up untill today - in this order:
Delphi
Vida
Tech2
GlobalTIS- MDI
Fiatecuscan
Original VCDS
SnapOn Verus (with oscilloscope and so on)
Renault CanClip
Mercedes Xentry
Carprog (so called EU version) havent been able to test it on the Volvo V70 dash on bench yet

Looking forward to learning soldering (got myself KSGER soldering iron with lots of tips as well as their hot air gun) and perhaps reading/writing ECUs