Consider your needs
The main thing you need to think about is your requirements. Are you looking for a specific function or do you want a MIDI controller for more general use? In the former case, a more focused controller would make sense - like a DJ controller for use with DJ software, for example - whereas an all-rounder is the best option in the latter scenario.
Consider your budget
The more features a MIDI controller has, the more it is likely to cost. Consequently, you need to square your requirements with your budget. Closely consider whether you really need all of the bells and whistles the top-end models offer, and if so, consider buying a second-hand MIDI controller to save money.
Read reviews
As is the case with any tech purchase, the quality of different manufacturers differs wildly. As such, it's vital that you check out a range of reviews on a MIDI controller before making a purchase. They often don't come cheap, so doing your due diligence is essential.
