I first experienced a thermostatic valve in a hotel in London...by our standards, they had a very inadequate supply noted because the flow at the showerhead kept changing radically as toilets and other things got turned on and off. The valves they had in the shower were Grohe, thermostatically controlled valves. I ended up putting one of those in at home when I remodeled. It responded fast enough to not be a problem (as would a pressure balanced valve), but it was nice to find your perfect setting, and then only have to turn the volume on/off.
While my thermostatically controlled valve has a safety stop that prevents you turning it up to scalding, you can, if you first press the lock button, so, at least with this design, you can get (nearly) full hot out of the thermostatically controlled Grohe valve. Mine is now about 6-years old, and still works as new. I don't know about the operation of other brands.