Tom Chick's impressions:

http://www.quartertothree.com/fp/201...#disqus_thread

Skip to 52:00, no spoilers.

-Thought ME1 was OK, hated ME2 (all levels felt like space dungeons, too streamlined), really liked ME3. He said it was the best out of the three
-Really liked the gameplay and levels. only some "go from Point A to Point B" in ME3, but for the most part, they do a really good job making the levels more spectacular and less linear. Areas are also a lot wider
-RPG elements are back and much better, finally figured out a way to combine RPG/shooter and make it feel coherent.
-ME3 really feels like the most confident game Bioware has done since KotOR
-Really loved the story, they resolve a lot of of really cool, long-standing arcs from previous games. Fans will love how plot arcs are resolved.
-Really loved the ending, and loved that Bioware took a interesting bold choice. Agreed that some people might not like, but he personally, loved it and felt it tied all the knots to the Mass Effect trilogy.