I saw that one but think it's only an incident meter.
It is incident and reflective, the incident hemisphere can be moved to either side for reflective readings.
It's also a timer, thermometer (air temperature) and tells the time.
Re: John's comment; it can be a little fussy to operate, since it just has two buttons that do everything. For example to change film speed, you have to press and hold a button, when it's in the right mode, then click through various speeds to get to whatever you're using next (or every time you change batteries, which ever comes first).
The little Sekonic L-208 might a good alternative for a small meter, it's got an analog needle instead of numbers and speeds are set on a ring scale like a Luna-Pro.
I bought the Gossen because I wanted to have the flash capability and something that could mount on a hot shoe, I don't regret the choice, but I wouldn't mind more simplicity in operation.