Just do it - it's such a useful inbox addition, and works so well in gmail too.
Daily email is really handy, but I can then check these once or twice a week.
The only problem is I start to ignore the unroll.me email as I know it's full of marketing.
Make sure important emails like banking etc are kept separate (i.e. in your inbox) as these can get 'lost' in Unroll.me.
Make sure you regularly update your lists on the software so that your inbox doesn't clog up again! Review collected by and hosted on G2.com.