Great space, excellent hosts but Palermo is a gritty, edgy area & you don't get views like you'll get from the very nice roof terrace without some effort ( it might be on the second floor but it's c150 steps & no lift).
The best & friendliest reception we've had (not just in Sicily but anywhere), Andrea & Alessia looked after us very well, before & during our stay.
The palace is very close to the central train station & intercity bus station. In first impressions it's a Dickensian type neighbourhood but in the full light of day it reveals less threat & more faded grandure.
Inside there is much space, great style & ingenuity in design.
Some great restaurants too.