Such a great place. Easy check in and out, and a pretty comfortable 20 minute walk into the centre. If the sky is clear, you'll get great views of Arthur's Seat along the way.
The place itself has everything you need, including some charging cables - I realised too late I hadn't brought a UK adaptor with me from mainland Europe, but discovered they'd thoughtfully left a plug and cables right there. Some of the powerpoints are also USB capable, even easier.
Grocery stores (including a 100% plant based one) right nearby, as well as good coffee. The only thing to watch out for is the shower - as a stand in tub, the shower head itself is quite low, so if you're tall like myself you'll be stooping a bit. Also need to be physically spry enough to clamber in and out without injuring yourself, the sides are quite high.
Once again, great place to explore Edinburgh from.