I did not like the Dakar for the following reasons:
It's very tall and very heavy (for a 650) and difficult to handle if you're less than 1.8m
The bike is pretty much set up as a road bike. The suspension is a bit too soft and overdampened for dirt.
The steering head bearings are not sealed but only protected by a washer

No fork boots either.
The side stand is positioned very awkwardly. It is difficult to tilt the bike over the side stand to spray your chain or fix a tire.
All three F650GS / GS Dakar I owned developed brain numbing vibrations at 3500 - 4000rpm. My bikes were early models, two Y2K Dakkies and the GS being the most recent - a 2002. Not the normal thumper vibes but the kind that blurs your vision.
I found the engines power delivery uninspiring and pap although the bikes perform well. It's probably a personal thing but I prefer an engine which kicks in at some point and responds crisply to throttle imputs. The F650's throttle cable seems to be 400 metres long and made from rubber.
Body panels are shockingly expensive (spraypainted).
The paper air filter element is tiny.
The water pump drive gear is a piece of cheap shite.
I liked the Dakar for these reasons:
Very good fuel economy
Very good passenger comfort
I would say:
If you are tall, don't mind a slightly heavier bike because you are looking for a tar & gravel tourer, plan to do some to a lot of two up, go for the Dakar.
A good alternative I would also consider is the RD07 Africa Twin.
If you are short and if you want to ride solo and hard dirt & technical stuff look somewhere else.