Ljubljana was the first stopping off point on our 2 week trip through Slovenia and Croatia and to make our money go further we decided for the first time ever to look at Hostel accomodation. We found Alibi M14 and thought we would give it a try. Booked 2 nights at around 40€ each night for us both.
Good Points; we had a double room with a huge private bathroom, no more than 10 minutes walk from the bus/train stations, 2 minutes walk to the main square Presernov Trg, free wifi, kitchen facilities if required, laundry facilities and friendly staff.
Bad Points; The main road outside is very busy from about 4am onwards so if you are a light sleeper this may be a problem tho personally did not bother me.
Overall I found this hostel to be more like a 1 or 2 star hotel and recommend it highly.