I used one to commute 100km per day for two years.
I am 6'1 and yes, the bike is quite small, but I cannot say that it was uncomfortable. Yes a Dakar would have been better.
My son, also 6'1, now uses it.
It is a nice bike with enough power to get you out of a spot but not enough to tempt you too much on the freeway.
Because it is older technology, carbs, no fancy computer systems etc, you can have it serviced just about anywhere.
If you look around a bit, you are likely to get something better for the price.