Just a warning for anyone who is considering to buy the Portabee Go: The printer is doing pretty good quality prints once it's dialled in.
BUT: The customer support is a joke! I'm waiting for a replacement hotend since four months and all they managed to do is send me two emails with the same questions repeated all over again after about five weeks of silence from their side.
During the first months of using the Portabee Go I had alot of issues due to nonexistent documentation and a lot of beta issues that were easily remedied but took always a lot of time because the communication with romscraj is just sooo bad.
They promised a "tuning guide" around December 2014 that was supposed to explain all the issues and I should just wait for it "a few more days". These few days still haven't passed, and it's now March 2015. All they managed to do in terms of documentation is two videos (obviously uploaded by a user) showing how to disassemble the hotend to remove stuck filament.
They don't reply to questions, and if they do, they let you wait for months.
I waited SIX MONTHS from order till I actually got the printer, then it took about two-three months until I could actually use it because of the beta diseases it had. The y-axis belt would always slip from it's ball-bearings and they let me know that they are still experimenting with another way to mount the belt. The auto-calibration routine intermittently just didn't work and there was no way to find out what to do about it.
My questions about the problem were simply ignored with standard-bla-bla emails or none at all. Then, after about two months of finally being able to actually use the printer, the hotend shorted out (it gave a spark when doing the auto-calibration) and that was it. Goodbye 3D printing. I'm trying since November 2014 to get in contact with them to replace the broken part, let me send back the printer for repair or do whatever with it to get it working again. The only reaction since November from them was that they asked me to measure the continuity between the heating-element and the hotend, which I did and replied to them with what I measured. Since then, nothing....
So until this company isn't turning around 180 degrees in their customer support behaviour, forget about the Portabee Go. Once you have any problem with it, you can just as well throw it away because you won't get any support. They state half a year of warranty.
It's simply a lie. They will just ignore your requests. I even called them in their office. The guy on the phone spoke such a horrible english that I just couldn't figure out what he was actually saying. He told me they will "send me a replacement hot-end". Sure. No reply to emails again whatsoever.