We have a microfiber couch. When we first got it I looked up instructions on how to clean it and apparently there are 2 different microfibers and they require 2 different types of cleaning. You can pull up one of the couch cushions and there should be a label under one of the cushions on the actual couch or maybe on a tag that will tell you a code that will tell you either to use water only or soap only. Ours had W which means water only. And it actually works. I just take a damp clean sponge and water has cleaned every mark that I have ever found. It's very important to look at the code.
Ok, here are the codes, I googled them to find them.
Microfiber furniture will commonly come with a tag that has one of the special microfiber codes that tell you how to clean it. The tags will say, W, S, S-W, or X.
W means you can use water based cleaning solution.
S means you have to use a "solvent" based cleaner
S-W means you can use S or W type cleaners
This is different than I had originally read. The website I first found (I have no clue which one now), said that W meant water only. And honestly, water has worked wonderfully. We have a light tan couch and a dog. Not a good combination. But there is not a food stain, a pen stain or a paw print from dirt that I have not been able to get out just by using a damp sponge and scrubbing a bit.