I have been using mouthshut mobile app since a long time now for writing reviews and i’ve been also earning by writing these reviews. The only problem is that since last month or so they are taking around 5-7 days to approve a review for the MS points but I like the ease of use and interface of the app and since the recent update, app interface is also improved. I will advise to write genuine reviews and your experience with the product or service on mouthshut and that will improve your chances to qualify for MS points.