I have id6 lite on my 17 (guessing you have a 17 as well, since 16s don't have the hardware to take id6 IIRC) and love it. No issues whatsoever and it looks way more modern than 5. At least from what I remember... I changed it as soon as I got Bimmercode and never looked back. Hard to think of what id5 looks like now.
I also think it works fine even without the touchscreen, even though it was probably developed as a touch-first interface.
Hope it works just as well for you!