Small form 3D printer

We need another printer to boost production times. It's mainly going to be a portable PLA only printer and we need some help as to which should be our next purchase.

Basic requirements:

Mini 3d printer

PLA only

Self levelling build plate if possible

Price <£400

Come on #3ders of the #3dworld which #3dprinter should we get to take our #3dprinting to the next level?