As a previous owner of a Lay-z-spa we were very pleased with this modern updated version.  The insulation works really well and the spa holds it's heat really well meaning much quicker reheat times between uses.   The new pump seems much more efficient although the bubbles aren't quite as forceful.      The cover allows water, spilling over the spa wall , to flow out the bottom instead of collecting in the bottom of the spa as before.   All in all a great experience.