Great apartment - the pictures don't do it justice. The view is just amazing. The host had left a welcome bottle of wine and some ingredients to make a dinner on our first night which was a nice surprise. We also used the BBQ one night which was great. Location was excellent - close walking distance to Cafe del Mar and lots of nice restaurants and bars - also a cab journey to Valletta was about 20 mins.
There were potentially a few extra charges e.g. for Wifi, late check in and if we went over the daily electricity allowance (which we didn't) to be aware of that weren't mentioned on Airbandb but all reasonable costs.