Really great service, but really long waiting times
I had really great service, the booking was nice and simple and even though I only purchased the item two days before the pick-up date, I could process it on the 9th. This service is great, however it does rely on people being free all day long - both Tuesday and today I was bound to my flat, and there was no way of getting a 30 min warning. Maybe this is something DHL could provide in the future? Also, when my package was picked up, I was told any one package shouldn't be 30kg - perhaps you could offer a 30kg option with two items at 15 kg a piece (or 25kg or 5kg). I also got a recommendation, which made it all cheaper.
Overall, good pricing and good system, but it would be worth looking into a more precise booking timetabling system.
I highly recommend this service, especially for university students as they have very good rates and a straightforward booking system. My only issue was that I didn't get the label holders that I paid for, but I believe that this might have been the post office's fault. But the company e-mails you the labels so you can print them off anyway. I would use their service again for sure.
Really good service from sendmybag, with constant tracking and notifications, sending my items on time. Their app was really good as well. I chose this out of other companies because they can help you send it in suitcase form.