Mine is real similar as well, but in a sense they all kinda look alike. :-) Given a sharp blade I can cut all day without issue, and it's several thousand days old. IIRC I've had mine for a bit over 40 years, Never needed any changes except fresh blades. I've long ago lost track of my uses, and it has gone out to with friends, and workers over the years many a time. I can't remember what I paid for it back when, but it's turned out to be a great deal. 

Author says 12 x 12 tile, which could be cut on this cheap auto pilot, but for smaller tiles I have always needed to physically hold them to get crisp cuts. I think by the time you figured out moveable clamping to hold the tile still, you may as well just do the cuts. 

Now doing anything to keep the pump wet is a win. Flowing water does make the dream work.