I find the menu system on Love Film to be absolutely fine.
I started off watching a fair bit via streaming and found some cracking gems that I would not have otherwise bothered with. However, the choice for "modern, blockbuster" type films to stream is not that great, so I would strongly recommend paying £9.99/month and getting the unlimited package that allows you to both stream and rent DVDs.
If you prefer to stay away from "blockbusters" and discover your own films, then there it a hell of a lot of content to stream and rent. Although most of the big, popular films are available to rent via DVD on there.
I am very happy with Love Film and would strongly recommend it.