The Hilton Kilmainham Hotel is located a little outside the city of Dublin, so it's not the best option if you want to visit the city centre. It's an area with a lot of traffic, so unless you're travelling outside of peak hours, it can be difficult to move quickly. But there are several interesting attractions nearby - Kilmainham Gaol, one of the country's most interesting historical landmarks, where famous patriots were imprisoned, and the museum of modern art. About 10 minutes walk away, you'll find the Guinness Brewery. The hotel is mostly aimed at business travelers, though, with nine conference rooms, internet and secretarial services. The hotel has decent prices, probably because of its distance from the centre: the price for a night starts at 105 euros for a double room, 115 with breakfast for two people.
It's one of the most popular hostels in Dublin. They have offers of pints of Heineken and a Guinness-like black beer for 2.50 at the weekend, and you can get a burger made on the BBQ, too. The rooms have bunk beds, the bathrooms are outside, and the service is excellent. The reception has tables where you can eat breakfast, next to the kitchen, and there are also computers for the internet. The location is great, next to Busaras and Connolly Station. The only downside is that the noise from the train tracks might wake you up early.