I've gone from the storm to the miniflex and can confirm the vac power is better. You lose on the pump spec however 400 and above isn't needed on carpets. The tank capacity isn't issue for me as 3 buckets of water gives you plenty to be getting on with, domestically. The small footprint I find is ideal for me. We're always looking to change to a different machine when it comes to replacing with new. The Storm is an excellent machine and cleansmart give a good service. As long as you like the manufacturer then I wouldn't change, the Jag isn't for me.