Eh, I think SWTOR has the best glamour system. You find a piece of gear, and you can add it to your appearance with no hassle or hoops to jump through. You can do it anywhere in the world while doing anything and equipping a new piece of gear will not override your current look.

When I played WoW I still had to break out my Grand Expedition Yak to talk to the transmog NPC and equipping a new piece of gear still overrode my current look.

In SWTOR, there's none of that. You have different tabs on your character profile to save different looks. Just make whatever look you want and keep on doing whatever it was you were doing. Don't have to have prism or talk to a portable NPC or anything. It's quick, painless and super convenient.