I have no experience with belt sanders but I can recommend the Festool
Are you looking for a orbital sander (finish sander) or a ROS?
If flatness is of much concern for you go with an orbital sander. On
the other hand orbital sanders tend to leave "swirls" so if you want
an absolutely perfect surface a ROS might be better. ROS's sand more
aggressively but leave a superb surface at the same time.
Personally, I use a Festool ES 150/3 (ROS for finish sanding).
Excellent design and ergonomics, well balanced and low weight (you can
use it very comfortably with one or two hands), VS, hardly any
vibrations (very important if you sand an extended period of time),
extremely smooth sanding operation and great finish result, hook and
loop (Festool calls it Stickfix) and the best dust collection I can
The sander comes with a filter bag which works quite well but if
possible connect it to a vac. I have the Festool CT 22 vac (wet/dry
extraction, auto on/off, variable suction - very important when using
a vac attached to a sander) and have to admit that this combination is
hard to beat. It allows almost dust-free sanding.
Festool offers such a great variety of sanders that you'll find the
right one for your application. And if you have any questions
regarding the Festool line, you might like to contact Bob Marino at
email@example.com Bob Marino is hobby woodworker and Festool ISA, very
friendly and helpful and as he uses the tools himself he really knows
a lot about them.
No matter which sander you get, do yourself a favor and connect it to
Here are some reviews of Festool sanders:
Hope this helps,
Christian Aufreiter, Austria
PS: No affiliation to Festool, I'm just a happy customer.