I would certainly appreciate a few more price tiers or an a la carte approach. I am a Basic plan user and don't require any more than that, however, the two device limit is going to bit a bit of a nuisance.
I thought about going to the Plus plan but in Australia that is $6 a month and the Premium plan $10 (cheaper on a yearly subscription, of course). I probably only save about 15 to 20 documents a month so on the Plus plan that works out at 30 to 40 cents each, a bit stiff I thought.
When I went into my account to deregister some of my devices I received an offer of 50% off of the Premium plan for the first year. This made it only slightly cheaper than the Plus plan so didn't really help. Now if they had offered 50% off of the Plus plan I may have given that serious consideration.
For now I am going to see how it goes with the two device limit.