@celondon
My experience as well for the most part which is why I see Qualities Points as a limited resource and Prototype Transhuman as not so broken (unless maybe in karma build).
I have upgraded such thing as Titanium Bone Lacing from used (gettable at creation) to beta grade. Only costs something like 25000 IF you are allowed upgrades, which is not RAW. Allowing upgrades is a really good house rule though that everyone should use.
Here's a link to my character Hound. A character I'm very happy with, both fluff-wise and power-wise. He's also a "Sam" archetype. Standard Priority build. No prototype transhuman or cybercompatibility. I have used both on other characters, so I don't consider them bad, but this time I got to use the qualities points for stuff I felt more useful for Hound. I could've put my Synaptic Boosters in PT and had one more essence actually (skip First Impression). But then we have the fluff, much harder to make up a story for a PT character than for a regular.
https://drive.google.com/open?id=0B_uo4RmLfLw3Q0dRaW5jWmZfMVUThe Prince is way better at Sneaking but on the other hand Hound's a lot more social.
Should have said much earlier. Your character seems good. Nephritic screen is nice for drug use. Orthoskin and Lacing gives him a lot of durability. And Sneaking near 20 dice. Nice!
Small thing that may save you a tiny amount of money. Were a little curious how you got so high accuracy and looked up electronic firing. You can have both on a weapon but they are not cumulative with personalized grip. Have not played with the Yamaha Raiden myself, too high availability at creation and the Ares Alpha has that nice grenade launcher...