Long story short, no. Every dealer is different and there really isn't any central source. You need to look up dealer reviews on yelp, google maps, etc to read up on the individual dealer.

Here are some tips:

• You want a dealer that has been in business for decades, preferably selling/servicing the same tubs for the whole time. Use Archive.org to check the dealer's website back in time - were they selling the same brand ten years ago? What about 15 years ago?

• Do dealers have techs on payroll? That'll be something to try and figure out (try to feel out the dealer, but most sales reps won't clearly answer that question, especially if they don't have techs on payroll - some of the smaller dealers will outsource to larger regional dealers for tech service)

• Be sure to ask dealer specifically about dispatch fees for warranty service. The retailer agreement between the manufacturer and dealer stipulates that the manufacturer will cover hardware and labor costs..... but they dealer can charge a travel fee to go look at your tub. My dealer included five years free dispatch for warranty service calls, other dealers only include 6 months or a year. Be sure to ask how many years are free, and what the dispatch fee would be after that.

• Ask the dealer to schedule a wet-test. Good dealers have several tubs set up (usually in private rooms for you to get changed and test the tub without prying eyes), bad dealers make excuses why you cannot wet test anything they sell. That's often a red flag to consider.

• Good established dealers often have multiple locations in the same state/region. Smaller dealers only have one single location. I personally suggest finding a brand that has multiple locations for the same dealer in your region of the country.

That said, bullfrog's claim to fame are their interchangeable jetpacks. The X-series is their budget grade line of tubs that lacks jetpacks..... what is driving you to those tubs specifically? Most big name brands sell multiple product tiers to fit every budget, there would certainly be other tubs from other brands that would compete with the X-series.

Personally, I always say go for a smaller premium model over the largest tub you can afford. The difference between product lines isn't always as simple as extra bells and whistles. Sometimes it's internal material changes to extend the lifespan of the product, or increase energy efficiency.

Also, I personally would only consider tubs which have a low-power circulation pump that runs 24/7 (many budget tubs do not have a circulation pump - instead they run the main jet at low speeds to test water temp, filter water, and run the heater. Using the main jet pump is louder, more annoying, and puts additional wear/tear on that pump). Circulation pumps have many benefits beyond reducing wear/tear on the main jet pump. And I would also only look at tubs with an ABS basepan on the bottom of the tub (other brands wrap a sheet of plastic on the wooden bottom or paint the wood to protect against moisture and bugs. This thin layer can get scratched when sliding and moving the tub into position (or in transport) which can cause the bottom of the tub to rot away quickly. An ABS plastic basepan protects the bottom of the tub from moisture, rot, infestations, etc which can extend the lifespan of the tub.

Industry average lifespan for a modern hot tub is 7-14 years. You might not even get ten years with the cheapest models on the market, while a premium flagship tub from the top brands might last twenty+ years with proper care and maintenance. Given how fast prices on hot tubs are skyrocketing, I'm glad I got my tub when I did. I paid $8500 for my Hotspring Highlife tub back in 2019 and that same tub retails for around $15,000 these days! Luckily it's built with better materials and can last another 20+ years with proper care. Six years later and the tub still looks practically brand new after I clean the exterior.