The WZ Cartel Agents are great. They end up in nearly every EZ or cyberpunk game for those exact reasons.
I add bits and signs to break the boxy feel of the Plast Craft buildings, but they're sturdy and work great for fast, inexpensive cyberpunk terrain. I wish I'd purchased a couple more.
I am biased, but Exploit Zero (formerly titled Hardwired) was made to be exactly that: a fast, simple co-op game with minimal prep.