Recent reviews by Commander Swift

Pros:
+For a free-to-play game, it looks FANTASTIC.
+Regular updates, Dev team is normally very transperent with these things unless it's big
+HUGE variety of weapons. Katanas, chainsaw fists, machine gun pistols, rocket launchers, this has it all!
+Continuously growing storyline. Smaller/older quests can be a bit boring, but the more recent quests (Basically anything from The Second Dream onwards) are much higher production quality.
+Large variety of charecters to play as. There really is something for everyone; Space faries, wizards, it's all here, and there's more coming too. PLENTY more.
+Fantastic premium currency trading system. You can get everything in this game without needing to pay a cent. Paying just gets it faster.

Cons
-Very grindy. You really do have to invest a decent amount of time into this, unless you have some great RNG.
-Microtransactions are pretty common, although this is balanced out with the great in-game trading system and that it's mostly limited to cosmetics.
-Player-based game hosting, meaning connection speeds can be very unreliable.
-Can be very boring at the end of everything. Players who have done alot in the game (Myself included) often find that they don't have a lot to do. Helped with the interesting update, but these are normally pretty brief.
-Bugs. Bugs EVERYWHERE. Most are pretty harmless, if a bit annoying, but every update, there's normally a good collection of them.
-Weapon balance is all over the place. Some weapons are fantastic all the way through the game, while others shouldn't be taken much further past beginner level. They have been working on this though, which is a good sign.


Overall, if you've got some time to kill, and want a Free-To-Play game that can look good and run on a low-end PC well, Warframe is a good choice.