So let's get it out of the way first. Yes the T2SS is expensive. I fully admit you could get a good razor for a lot less money. That doesn't mean it's not worth the price, just that it's a question of is it worth it to you.
For me, the twist-to-open, longer handle, and adjustable blade clearance make it worth it. I can fit it in my hands more naturally, and I like the heft cuz it helps stabilize my hands just a little bit more for sensitive areas, like between my nose and lips. The twist-to-open mechanism is admittedly a nice to have, you certainly can use a multi-piece razor just as well, but I find it a little more convenient.
The adjustability though, that's key. I have really sensitive skin. Every blade I tried with my other razors (all beginner friendly) left plenty of nicks and cuts, despite my best efforts. Some it was only one or two, sometimes I had none, but usually I'd have to use a styptic block or pen to clean up after every shave around my neck and nose/lips.
Sure I could probably have gotten one razor with very mild shave, and another with a more aggressive shave to get my cheeks actually smooth, etc., but being able to just twist the little dial and go from "no cuts" to "close shave" in a second is amazing.
Seriously, I was considering going back to electric cuz of the cuts. Sure it wasn't all that close a shave but at least it was me-proof. But my husband convinced me to try with an adjustable razor, and the T2 was pretty much the only one that had everything I wanted, so I splurged a bit and well, definitely do not regret it. I haven't had more than two or three nicks in over a month of using it, and even blades that I still have entirely too many of because they used to cut me real bad (*cough* feather *cough*) are way gentler at the mild settings, enough that I feel like I can use them!