Recommendation?
Don't waste your time and money! :-)
I haven't read any of the other responses here -- mine is a gut reaction, born of (a) having lots of hedges (and border plants for that matter) and (b) cutting them for decades. [And (c) having tried at least two shredders in my time.]
You're going to either compost the cuttings/plants, or you're going to take them to the tip:
- if keen on composting, pile them up lengthways on the lawn, then use your hedgetrimmer to chop the pile into short lengths. [1]
- if taking to the tip, pile them neatly on to a tarpaulin, then wrap them up tightly and ram into your car -- also by far the easiest way to unload at the tip.
Shredders are noisy, expensive and worst of all demand hours of your time.
[1] Many people, including the TV experts, say "just run over them with the lawn mower". This advice usually comes from people with loads of time, and/or assistants whom we never see, even in the background, on programmes like Gardeners' World. This method is slower than chopping withe the hedge trimmer, and in any case you need a big, powerful, petrol driven mower.hth John