This product was a replacement for a non-branded thermal cover we had that fell to bits within a few months of use. The Lay-Z Spa cover is robust and feels like it will withstand the frequent tugging off-and-on that comes with use.  It hugs the hot tub tightly, so in the crazy winter storms it doesn't become dislodged, blow away get stuck in our thorny hedge. 

It does what it's designed to do, which is hold the temperature of your water for longer (I don't have exact stats) thereby saving power.

Yes this cover cost us more than the alternative, but I wish we'd just bitten the bullet and spent the extra first time round.

Highly recommend!