The former, iCoolGeek's first game, is a fun little point and click that sees you saving Tesla and the people of Colorado Springs from the aether. The graphics and navigation work well and I like the notetaking system. It's neither difficult nor long but it's well worth 65p.
Enigmatis... is slicker and longer, though perhaps not as much fun. The mystery is hardly original (creepy New England town, people in robes, missing girls) but the game play is very well done. My only issue was with the hidden objects bits; it's a shame they couldn't be better integrated into the overall gameplay.
I'll try out some games from other developers to see how they stack up and I'm going to have a crack at sideloading SCUMMVM to play some old point and click adventures too.