I have a white one. It is very easy to use (I've tried the medical spoon method, but doesn't work half as well), with the shewee I can confidently pee standing up.
The only downside is the relative bigger size of the device. It is also very sturdy and inflexible so could be uncomfortable if you have it in your jeans or pants pocket.
But it definitely does what it says it does pretty well.
I got mine from ebay so was slightly cheaper.

Hope this helps.