I was quite satisfied with my first two orders, but I didn't like the third one, I thought it was unfair. I chose to consolidate 3 packages that totaled 1.7kg. I read in the FAQ that the packaging in consolidation weighed up to 0.3kg and therefore would not exceed Royal Mail's 2kg limit. The consolidation left the package with 2.2kg, which would give an extra 0.5kg instead of 0.3kg. I had to pay another £7 to remove original packaging and then the package weighed 1.5kg. I suggest that you create some calculation or tool so that we know the correct limit based on your packaging. The other 2 orders were books and magazines too and my calculations worked out fine. The choice of orders cannot be based on luck, there should be something that warns you that the weight will be exceeded without having to pay later to correct the problem. I found it very counterintuitive and explorative.