I have purchased the ifi nano BL and I am very pleased with the sound it produces as well as the MQA reproduction from Tidal, however there are some serious issues I am facing with it. One should have been told the device does not ship with an MQA compatible firmware and you have to upgrade it first. In doing so, you loose the led indications on the sound quality/rate as well as the full compatibility with Mac (which is very surprising), as the latest firmware is officially only compatible with Windows. Thus you get a very troublesome connectivity to Tidal, which is very unpredictable and the devices often loose connection to each other, so you have to switch off and disconnect the nano to overcome it. In addition, playing Masters form Tidal gets you an unmute period (actually volume muted down associated with a funny sound at the end) at the beginning of each new track, lasting for about 2 seconds, which is very annoying. Apparently the nano is trying to identify what is being thrown at it in the beginning of each track. The only other MQA-capable device I have is an Auralic Aries, and it does not behave like this by any means. Wonder anyone has had any similar experience when testing it with Tidal Masters. It seems to me the firmware needs still some work on till the device really delivers to what it promises or I am doing something really wrong..