Really first impression: that's one darn big box it comes in! And heavy, too.
Unboxing is much like any other inkjet printer (+scanner/copier/FAX), only with even more bits of blue tape.
The beast having been unpacked and de-taped, I wrestled it into place on my side table, having to remove even one more pile of paper to make space.
And I need to keep a good-sized area clear, 'cause changing the ink cartridges requires scooting it out from under the overhanging bookshelf.
Paper tray handles various sizes neatly; for the big sizes, like 11x17 (which is what I mostly need it for), the front of the tray extends.
Paper goes in the front and comes out the front, just like a typical office machine, but unlike inkjet printers I've had in the past.
I had to plug the USB cable into the workstation (Debian Wheezy) to get a version of CUPS that speaks WF-7xxx; the server (Squeeze) knows nothing of such devices.
I told CUPS it was a WF-7510, and it seems to work OK. Test page came out zippy-fast, and nice and clear.
Next up: print a schematic from EAGLE. Oops! For some reason, EAGLE thinks that printer only does A3, A4, and Letter. Hmmm?
Ah, but e-mail brings me an 11x17 schematic that I'll be needing on the morrow, ain PDF form. Acrobat knows it's an 11x17 printer. Schematic comes out fast, and decently usable... but I think I may want to fiddle with the driver settings, or choose a better default print quality, or something; it's a tad light.
So: gotta fiddle with the default settings, and try to figure out what's up with EAGLE.
Haven't tried the scanner yet. Opening the cover is problematic in its current home. But, hey! It has a sheet feeder! Might be usable as scanner or copier yet, as long as I'm dealing with loose sheets.