Pros:
+Fricking great visuals.
+Same good ol' Sam action.
+Great working co-op.
+Fun and sometimes hilarious level designs.
+Fun secrets and puzzles.
+Some really crazy shooting.
+Remastered sounds are awesome.
+The multiplayer is more alive than other games.
+Steam Workshop!

Cons:
-Can be repetitive at times.
-Music wasn't updated much.
-Netriscia is useful but can be annoying with her e-mail thing.
-Some levels feels really empty.

Verdict: The original version was good, but this HD remix is fricking awesome. This is probably the closest thing you'll get to serious sam 2.

Rating: 4/5 Great!