Don't see why you couldn't? It's never going to be as good as a dedicated desktop machine but then again working mobile is always a compromise.
I've never really looked for reviews since I keep telling myself not to buy one but this guy seems to have a pretty balanced review (especially since he was a mac user lol). He seems pretty happy with the pen and the pros/cons balance out roughly as I'd imagine with there being certain drawbacks.
This guy usually uses a Cintiq for illustration work and seems to be quite positive about it
https://www.youtube.com/watch?v=dgfzm1g3lv4
If I had a need for any kind of mobile processing then this is certainly something I'd consider.
Sadly there's limits to my money so I can't really justify buying one lol
I completely get them for illustration and sketching, and if the 3 is anything like the 2 for quality, which everything I've read suggests is true, I'm sure it's a fantastic machine, but photography isn't illustration or sketching.
It's not really about desktop vs laptop either - It's about working in a controlled environment vs working in an uncontrolled one, whatever your computer of choice.
If you're comping you need precision, if you're retouching you usually need some form of keyboard for shortcuts, and if you're doing colour work you certainly can't be wondering around in changing light conditions with your auto brightness going haywire. Of course you
can do all these things on the move, but you'll end up sitting at a desk later and realizing all you did was make a huge mess you now have to fix.
I would also say that even if you're using a mostly slider based program, it's still nicer to interact with a regular laptop with a big track pad, or a wireless mouse. The whole holding a pen up to a screen thing just isn't that great, and if you put the Surface flat on a table it's crap for your neck.
People see retouchers using Wacoms, see the Surface, see the pen and think jackpot, but the only similarity is holding a pen in your hand. The whole process of interacting with the program is completely different. You would be deliberately introducing compromise for the sake of a stylus because you
think it would be better for 'creative' work. I promise you that for photography it's not.