Motul makes great products. I'd challenge that reviews of "I love my brake fluid" aren't the same as it actually working better. Social media and voting has really put a crimp in the world of facts.
(off soap box)
Quick note: With regard to maintenance of the braking system. Think about it like this, you have the fluid system, which you'll be flushing to remove debris and air, and you have the mechanics of the system.
The mechanics are things like the pivot at the lever, which should be clean and lightly lubed to work freely. The piston in the master should move easily and smoothly.
The pads should have enough pad on them and should be clean of debris and fluids. I clean mine with the brass brush to make them look like new before reinstalling. The calipers themselves are primarily a metal hollow to hold fluid as the brake caliper pistons and pads move in and out. The pistons should be clean as should the O-rings. An easy way to do this is to but a "pad replacement" where the pads go. That can be old pads or a piece of wood that won't damage anything.
Cycle the brakes so that the pistons move in around the "pad replacement." Note that you don't want air in the system from the top (don't overflow as you'll be pushing all of that fluid back up at the end). Be sure that the pistons don't pop out, or you'll be bleeding a dry system and cleaning up a mess. With the pistons pushed out, you'll see all of the crud on the pistons and the O-ring.
Use something rubber friendly to clean all of that with a toothbrush. I use Simple Green, at the suggestion of a world renowned expert, but like anything, you'll find people on their soap boxes about how bad that is. Use what you're comfy with. Rinse with water or brake clean.
Once done with that step, the pistons should move freely with one finger. That is how you know you've got it right. Note that pushing them in can overflow the reservoir. From there, reinstall pads/pins/locks and flush the system. The test. Id you've never done it, you'll likely discover a night-day difference.