kit lens upgrade for Canon 550d.... please advise

I am new to photography and looking to upgrade my kit lens for my 550d. i would like a lens i can use most of the time. I mainly take photos of family and friends, sometimes in low light. i have a budget of around £700

I have been looking at Canon EF 24-105mm f/4 L IS USM and any advise would be very appreciated it.

One day i hope to upgrade to a full frame body.

Thanks
Lee