I've used Fuji Xerox machines the past 10 years and can say that they work really well.
Incoming faxes can be routed to email as PDF or JPG or a few other formats, you can also scan from the automatic document feeder or the glass and have it emailed to you in PDF, etc. The scanning quality is excellent and the file sizes are kept small.
I am currently working at a place that has an HP multi-purpose device and by comparison, the size of the scanned files is ludicrously large and quality is not that great.
So if you decide to go with a machine, look at Fuji Xerox - great machines in my opinion.