Mine is the Sport so it's mechanical limited slip. Works good, but not as good as a locker. I've flirted with the idea of going with an ARB but so far this has been just fine. The softopper is great. It's five years old now and treats me well. Super easy to fold down so you can haul something tall. Takes like a minute or less. But mine is up most of the time. Keeps things dry and most of the dust out. But it's not 100%. Good enough for my needs. As you would with a hard top, you should seal up any bed cubbies. That's where most of the off-road dirt comes in. I sleep back there on trips where it's just my son and I. Take naps on my lunch breaks at work since we don't have break rooms. Love that you can run them in safari mode with the sides up.
I wrote a big review about it a few years ago:
The Softopper has been installed on my Toyota Tacoma for 3 years. Read my "pros and cons" review and why I like it better than a hard camper shell.
dirtnsmores.com