Joseph, no ONE system is the absolute best for EVERY situation.
I have my reasons for choosing Encapsulation over HWE in most commercial settings.
Others will have different reasons for their system.
With Encap; I don't have:
An expensive machine sitting outside, possibly upsetting people with it's noise and/or exhaust fumes.
Environmentally, Encap uses a lot less water and no gas.
You use the clients electricity.
Security problems with people stealing equipment, chemicals etc; from vehicle if not able to be secured. Also no security problems with the premises as all equipment is inside and doors secured.
No hoses snaking through the job site.
No problem with damp or smelly carpets the next working day, especially if air conditioning is turned off as so many are.
On CGD polyprop/olefin, my dry Encap; looks much better than a dry HWE.
Carpet does fill up over time, especially if not vacuumed efficiently, so HWE or Steamin Demon is a good way to flush these impurities out occasionally.
Some jobs, not many, I will use HWE.
Others I use a combination of both.
I also do one hell of a lot of residential with Encap;
Pre vacuuming with an efficient vacuum cleaner, in the correct manner, is all important in both types of cleaning, in my opinion.
Cheers,
Shorty.