The good:

Graphics – graphics are great. I think the graphics on the 360/ps3 were great and these are just a bit better. Not that graphics make a game but they are pretty good.

Camping – finally a FPS game that people cannot camp. You can get 1-2 kills in a spot but you will be killed if you stay there.

Game time – short games. This is great for people that might only have 15 minutes to kill. Also keeps things moving if your team is just getting killed by another.

Options – tons of options. You can be a sniper, you can melee, you can shoot an automatic gun, you can be a mech, you can have your mech follow.

Mechs – Mechs are fun. Fun to use, fun to have follow you, and fun to kill.

Jumping and movement – I love the double jumping and wall running. Its cool to get up buildings and also tough to kill a pilot that is moving fast.

Sprinting – unlimited sprinting is a nice feature. Keeps the game moving.

Maps – maps are a good size and made well. You cant hide and you also will not spend the whole game getting into the gameplay if you die.

Fast pace – Very fast paced. You cannot sit still

The bad:

Loading screens – this was the only bad thing I found in the game. I thought these were pretty generic. Have some cool stats here or maybe a good picture.
stats – sometimes I could not see my stats.
Pilot vs ai – I wish I could tell who was who on the other team. Make it clear its ai/pilot.

What I would like to see in the final version:

Ranks – definitely needs a halo 3 type ranking system
Competitive playlists – definitely needs ranked vs fun playlists

Overall:

Honestly I have not felt this good about a game since I played halo 3. I believe every FPS fan should have a copy. I dont think people can say this game is bad, they might not like it because they do not like FPS games but they should recognize it as a game that is going to change a genre.

Score:

90/100 (the final game could be more or less)