We stayed here as part of an Expedia flight and hotel deal so that possibly coloured my judgement as I think we could have picked up something much better in a better location for the same package price. However if you're travelling independently on a budget, looking for a clean, friendly hostel with communal space to meet fellow travellers then I would recommend this.
The twin room we had was only £15 each so for Tokyo an absolute bargain. For that you don't get much space (a bunk bed and space to put your bag) but you're not going to spend much time in your room - this is Tokyo after all - so it's not really an issue. The rooms were absolutely spotless as were the shared bathrooms and communal kitchen. The friendly staff all speak perfect English so if you're arriving in a Japan for the first time you don't need to worry.
The hostel is next to Kuramae station (don't get this confused with K's other hostel which is close by) and the journey to Shinjuku is direct and takes about 25 minutes. It's a 5-10 minute walk to the temple at Asakusa. Maybe a little out of the way but it was nice to see that area.More