For the same price you can find one with more keys. Once you start using one you are going to want more keys. Might as well get it up front.
Since it is a midi keyboard only you'll only have access to a small amount of sounds basically one octave. In order to get other octaves you'll have to do some sort of change that takes time and that can be very frustrating once you are immersed in the creative flow. Just sayin.