I've been doing 3D object design work in Blender and printing on a Flashforge Creator Pro, which is similar to a Makerbot Replicator 2. I usually print at .2mm per layer and 20mm/sec feed rate, which is slow but can produce reasonable quality prints with good designs.
3D printing is fiddly. The process is complicated and some 3D modeling skills and editing of files is a must to be able to do anything useful. Everyday practicality is virtually nil in the sense that if faced with choosing between going to the store and buying a soap dish or spending an afternoon printing one, you're probably going to go buy one. 3D printing is as likely to wind up in everybody's homes as Blender or Maya is likely to wind up running on everybody's computers.

However, for certain design and prototyping applications, 3D printing is amazing. In one instance, I needed to splice a couple of communication cables together in a failure-is-not-an-option scenario and was able to design and fabricate a tiny junction box containing a pair of strain-relief wire clamps in a day that I'd have been hard pressed to do any other way.

1.75mm ABS filament spools from Octave are 2.5" wide with a 2" hole. The spool holders that come with a Flashforge Creator Pro are about 2.1" wide and about 2.05" in diameter - the Octave spools don't fit. Here's a spool holder for the Flashforge Creator Pro that the Octave spools will spin freely on. Doing it in two pieces allowed me to eliminate scaffolding, which cut the print time in half. A couple small screws will be needed to attach the hook to the back of the holder. .125" screw holes are in the model. This holder takes about 12m of 1.75mm filament and a total of about 7 hours of print time at 20mm/sec and .2mm/layer.