First off, I did not buy this from Amazon so am unable to review the service BUT I can give my opinion of the booze :D
If I didnt know it, I could almost forget that its actually got alcohol in it.
The bottle is 700ml but im sure that would hardly survive a night for one person as its sooooo easy to drink and is not too sweet,not too strong and will get you tipsy quick.
The taste is hard to describe.....Its deffinately chocolate but cant think of anything to compare it to (maybe a dark chocolate?)
I had a swig as soon as it turned up and had to look at the bottle to check its percentage as the beers i drink taste stronger.Later on mixed it with pineapple juice (maybe not the best mix) but has ended up being what will now be my 'summer afternoon' drink.
By the way- when you unscrew the cap a handy pouring spout will pop out!! Its spring loaded and helps greatly in allowing to to add a dash of it as needed.
I 100% recommend this and I also love the mint and banana one ;)