Just had a look at the link. Am only 12 weeks but have had back ache and sciatic pain. Not sure about maternity belts although bump bands seem good for cosmetic reasons (covering flesh!) I think it is hard with these products as our species has carried baby's throughout our existence without belts. If you are having bad back pain it might be worth a go although I would talk to my midwife about it too. It could be a symptom of something that could be dealt with in another way. But who knows, I could be crying out for one of these in 6 months time!