Are heat and massage features worth paying for?

Mixed. Verified-purchase reviewers on Walmart and Amazon often praise the added comfort of heated lumbar pads on models like the Innova ITM5900. However, an r/backpain commenter we read flatly described the massage function as 'just vibration, and it's LOUD,' arguing it gets in the way of relaxing. Treat heat/massage as a nice-to-have, not a primary buying reason.