My uninformed opinion:
We slightly overpaid to move up to 10, but sometimes you have to overpay to get what you want. By that I mean, I think 15+26 would have been a fair price for 10, but the Blazers wanted their guy badly enough that they gave a little more. Or maybe they figured there were enough targeted prospects in the 20-26 "tier" that it wasn't an overpay at all.
I think Zach Collins is exactly the type of player they wanted, and needed, and a bit of a steal at 10. He seems to have all the tools to be a modern PF, who can also play backup center, and with a bit of a bull dog attitude. The question is when, not if, he passes Vonleh (who I still like).
The Swanigan pick at 26 surprised me. Based on all the player analysis posted by the experts on S2, there were other guys on the board I thought we'd take ahead of him. The very first words out of my mouth were: "Can he play defense?". Followed quickly by the on-air analysis that no, he can't. We'll see I guess. At least he's a stud rebounder and should be adequate offensively. I've read countless times that "rebounding is a skill that translates to the NBA", so it must be true.
My only real disappointment was that I'd hoped we'd purchase or trade for a second round pick to grab Bell or another good player. Still disappointed by that, and pissed Bell went to GS.