10 Worst Hot Tub Brands to Avoid in 2025 (and 5 Most Reliable Alternatives)

10. Dimension One Spa

Dimension One Spa doesn't offer many reviews on their own site—which can be a red flag—but third-party platforms rate them around 3.2 stars on average. The biggest issue? Longevity. These hot tubs often break down much sooner than expected, and buyers are left struggling with unclear delivery processes and frustrating design flaws.

Common complaints include:

• Early mechanical failures
• No delivery or setup guidance provided
• Poor design leading to leaking hoses, faulty pumps, and rapid wear

Rating: 3.2/5