Every week a Guardian Money reader submits a question, and it's up to you to help him or her out – a selection of the best answers will appear in next Saturday's paper.

This week's question:

I'm tempted by Lovefilm or Netflix downloads or DVD rentals. Are the deals worth the £7 a month? Do people stick with it? Can you always get what you want? Does the download only really work if you have superfast broadband? Anyone used both and know which is better?

What are your thoughts?