I happy without the interface, I'm just loving that you turned my good card (for work and my research needs) into a better miner when i'm not mining it. Just hope there is more you can squeeze out the little bugger.
I'm happy too with current cudaminer interface (or lack off). The only thing I wanna see is an API level similar to cgminer, to have decent monitoring tools.
BTW, my config :
-Geforce GTX 460 1Gb, OC 850 / 2100, stock air cooling, 82°C. 135 kh/s with --hash-parallel 1 --interactive 0 --texture-cache 2 --launch-config F7x16
I use --hash-parallel 1 instead of 2 because with the new release (2013-12-18), the temp is going over 85°C and I dont want that.