This is a very early review it would seem.
Some points to touch on.
The crafting system doesn't seem that bad to me, maybe it's from playing Clash of clans where things take weeks to complete, so waiting a few days doesn't seem bad. I have built 2 warframes without spending a dime. What you do have to buy are extra warframe slots and weapons slots, but they give you some platinum to start with.
That being said I have spent some real life money that I got from trading games in, I figured I enjoyed the game, why not give the developer some money.
Level design seems good to me, there are some confusing things here and there, and nothing terrible. The levels are somewhat randomly generated, so they don't get to repetitive.
He only mentioned 3 types of missions, there are many more than that.
I thought this guy's comment on the review was good too.