Q: There's a minimal graphic interface on many servers, so it's expected you control track selection etc from your phone or tablet - correct?
A: Pretty much all music servers and music streamers are really designed with the goal of using a tablet device as the remote.
Q: How much do you need to know about computers to work one of the music servers to full effect?
A: Unless you have some good basic IT knowledge, I wouldn't attempt setting one up yourself. These types of products should be installed by a professional with knowledge of computer networks and digital music to make sure the system is reliable.
Q: How robust are the servers? Is hard drive failure ever an issue?
A: Music servers are built to be robust and to be left on for hours on end, although it doesn't matter how good a hard drive is, they can always fail, the key thing is to make sure you have some kind of regular back up of your music collection happening, this will ensure if you have a problem, you will be able to get your music collection back with the least amount of hassle.
Q: Some servers come with dacs and amps built in, some don't, it's all rather confusing for the uninitiated what's your advice to a customers?
A: Most music servers and streamers do have DAC's built in but these can be bypassed to allow for upgrades and tuning of your system, the key thing is that this offers flexibility. Amplification that is built in to these devices can be very restrictive and low quality... The best way to avoid confusion is to stop reading reviews on the internet and getting hung up on specifications, go and see a specialist, let them guide you based on what features you are looking for and what your budget is.