Hi mate
It is always difficult to choose which dry or wet cutter to buy. Depends if you are a DIY'er , part time tiler or self employed. There are many to choose from and many different prices - the choice can be baffling.
You really need to decide your budget and think how much use you will get out of the cutter and how much time ( and money it will save you ) inthe long run.
LOST TIME = LOST MONEY
As a case in point :
I have just finished a 32 sq m bathroom - fully tile - walls and floor. tiles were Porcelain - 600 x 300 x 10mm thick - grade 1 - very very tough. My Rubi TS 60 Plus would not snap them without breaking them. I tried on my wet cutter, this took too long. So after 3 days messing about I had enough - so went and bought a Rubi TX 700 N - cost me £300 ( after batering the shop down by £30 )
Got back to the job - and Hey Presto every single tile cut simply and easliy and cleanly. This cutter has special guides for cutting on the diamond - tried a few porcelain 600 x 600s I had in the garage on the diamond - cut them cleanly with no problem.
You will bew best off having something like a Rubi TS 50 Plus for most tiles and a larger cutter with a stronger breaker for larger porcelain ( big porcelain tiles are becoming more popular )