IMHO is it easy to create great profiles in case you have all this:
- a great sounding amp
- a great sounding cabinet
- one or more microphones
- the right mic placement
- a decent mic pre amp
- a large room
- the option to profile loud
- some time
(all the above must fit together)
If anybody is able to create a great recorded tone out of the amp - then let everything as it is and just profile.
I spend most of the time (even when I create a LOT of profiles from one amp) to find this best setup first.
Normally I create 20-30 profiles (clean and distorted) just to find the best mic & mic placement - after this is it just "some work" - especially when the amp is complicated (e.g. the Diezel VH4) - I profiled this amp about 300 times - some 120 were selected for the pack.