I've been going to the Glen now every week for around three years.
The selection of alcohol available is simply unsurpassed by any other pub in Jerusalem. There're 17 beers on tap not to mention an extensive collection of bottled beers, close to 100 different whiskies to choose from, mainly Scottish single malts but also a few blends and American whiskeys as well as some more unusual choices. Of course there is also a wide range of other drinks available, for those who like cocktails they will happily customise one to your tastes.
You also cannot fault the quality of service, it's friendly, fast and efficient. The staff are all highly trained and can easily provide you with in-depth descriptions of all the drinks on offer. Give them a quick description of your tastes and they'll happily recommend you new drinks to try (and in my experience invariably get it right).
If you're looking for a place to sit, chat and have a few (or many) drinks then this is the only place to go in Jerusalem. The atmosphere is always lively, the music not too loud, the pub is full of people who are passionate about drinks and will happily sit and have a chat with you about almost anything under the sun.
Don't miss out on this place when visiting Jerusalem, it'll be welcome break from walking round site seeing in the heat!