The issue with factory TRD Pro models is they have designed the suspension to a price point where the economics make sense, and it is only a little better than the standard OEM stuff. They're not putting in anything exotic - unlike the ZR2, Raptor, Rubicon, etc. which are truly offering some trick stuff. The TRD Pro doesn't even get a locking rear diff whereas the ZR2 and Rubicons get front and rear locking diffs.
The only important issue to consider with TRD Pro suspension is that it's designed to handle factory weight, maybe a little more, but it's certainly not equipped to handle front/rear bumpers, winch, drawers, fridge, roof rack, and 4 occupants which means you end up having to upgrade the suspension anyways. At least the Tacoma and 4runner TRD Pros (and the TRD Off Road models which is absolutely the sweet spot in the Toyota 4x4 lineup) get the rear locking diff and other good upgrades like skid plates.
After having seen the OEM upgraded suspension first hand on trucks I've owned and modified like the Wrangler Rubicon and TRD Off Road Tacoma, there is absolutely no comparison -
the aftermarket stuff is WAY more developed and durable. If you don't believe me, just read this comparison where they put a TRD Off Road Tacoma against a Honda Ridgeline and Nissan Titan in Death Valley, and the Toyota and Nissan kept blowing shocks. TRD stuff is very little substance and lots of show beyond the locking diff and CRAWL/ATRAC.
Death Valley Torture Test: 2017 Honda Ridgeline RTL-E vs. 2016 Toyota Tacoma TRD Off-Road | Edmunds