No where to put name of cutter Dan. I use a Montolit Masterpiumer 63 and a little £25 montolit. 63 is brill for repetative cuts and will cut porcelain marble and granite (with a bit of help with mallet).
have a mini monterlit and master piuma
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like grumpy grouter I have a £25 mini montolit great for most bathrooms where space is a premium and a master piuma 63 for the larger floor tiles. Find the breking system on the 63 great no broken tiles. The 63 also suits me as it is set out for a left hander for some reason although the mini can be a problem sometimes. Some say that it is difficult to use because you cant see the blade but you get used to lining the cut up with the breaking spine. Also being able to set the mitre cuts time. Have used the rubi but i felt it was not as substantial as the montolit as it has flexible hollow tubes instead of the sturdy centre bar.