Yes, I spoiled it by reading about it and being well prepared. I knew what weapons I'd find, what ammo was abundant, the enemy types I'd encounter and the best skills and weapons for taking them on. I usually don't play this way, but I also knew I couldn't turn back until I made it through, so I justify it that way
I didn't get the stealth suit yet, but if I understand how it works I won't wear it. My stealth skill is 100, and you can't go over right? With upgrades it can boost AGI and PER I think, plus faster move speed when crouched. But as far as DT it is only +1 over my Duster while weighing 800% more. DT to weight ratio is key for me. So while I will get that suit once I come across it, I'm not sure I would actually wear it.
Plus it's medium armor which would negate the light armor perks I've taken.
To achieve anything in this game you must be prepared to dabble in the boundary of disaster — Stirling Moss