I've stayed here quite a few times now and have always found the reception staff friendly and the prices very reasonable for somewhere so comparatively central.
The standard rooms are compact (fine for one, two might be cosy) but well thought out and designed. Comfortable beds, nice thick curtains that really shut the light out. Not a whole load of storage space but adequate for a couple of days' stay. Each room has iron, ironing board and a fan as well as tea/coffee facilities.
Location is good - easily reached from Mancunian Way and a short walk from Picadilly station.
Nearby car park in Charles St is a bargain (currently £2 a day on Saturday and Sunday, otherwise up to £10 a day).
Having also stayed at the Charles St Ibis hotel, I much prefer Days Hotel.More