Didn't quite know what to expect, but I can honestly say it exceeded all expectations- The cottage had everything we needed- fully kitted out kitchen with dishwasher; we had access to the washing machine and drying room (where we safely stored our bikes). Seems that the current description of the cottage is not up todate on the website- there was in fact excellent wifi in Lily cottage. Finally, water pressure and hot water in the shower was also excellent (thankfully not one of those flimsy electric heaters which barely warm up).
Location- You won't be able to walk out or cycle out from the cottage but as long as you don't mind driving out, this will not be a problem. No issues for us- location was perfectly placed for day trips (which we did) to Llyn Peninsula, Aberglaslyn, Beddgelert, Llanberis and Cwm Idwal. There were also excellent cycle routes from Caenarfon (which is just 5 minutes away by car).
Since we've been back, we've recommended Lily Cottage to numerous friends- will definitely stay again when we return to North Wales!