Mine's a 210bhp model, it was remapped at Alfatune at Easter, I've no idea of the output now, but it is bleeding fast now, immense, sort of like my remapped V6. Now, I have had some downsides since getting the DPF removed and all the remapping. I'm not saying this is down to the remap, but maybe the DPF was masking some exhaust scents, also got pretty sooty exhaust tips, like a petrol car is with an over rich mixture.
The other thing it really brought to light was the slipping clutch, it was much easier to make the clutch slip post remap, but a few hours in the car to get used to it and now I can't remember the last time I got it to slip.
If you fancy more power, a smooth delivery and part avoidance of all the inlets and throttle body getting sooted up, then go for it. I (supposedly) had my intake manifold cleaned out at Christmas so when Gus told me it was a bit coked up by Easter, I honestly didn't believe him, but I had a look the other day and it is indeed coked up again. If you think (like me, i read it somewhere proper) that you're going to get smoother power delivery making town driving much easier with fewer gear changes, then I disagree with that, because my clutch wouldn't last 2 mins if I drove around town in higher gears. Also don't bother thinking you're going to get better MPG, if I actually got any gains, they're straight out of the window as soon as the car is up to temp
If you have a spare £700ish, get the whole works