The swash 1400 was an upgrade from the swash 1000.  While I love the bidet, I felt the 1000 model had better water pressure.  
The water heater on the 1400 developed a problem within a couple of months and had to be replaced (customer support was wonderful) and I had hoped the poor water pressure would have improved with the new replacement - but no.
If I hadn't changed toilets (from a round to an oblong) I would probably opt to go back to my model 1000.  
Still, I love the bidet (nothing like a warm seat on a chilly night & the wonderful personal hygiene) and would highly recommend giving it a try.