The 495 is a beautiful spa! I'm getting a 470 (due to arrive this week) after considerable research. For us, once I settled on Jacuzzi, it was between the 470 (no lounger) and 480 (with lounger). The 495 is a large tub!
Word of caution: I can't tell from your previous message if you and your family have wet-tested. That is, gone to a store and soaked in the tub you're considering purchasing. That is the single best thing you can do before you invest in a tub, doubly so because you seem new to hot tubs (like me!), and triply so if it's a significant purchase in your budget. Don't skip this step!
Second bit of advice: once you have the price range identified you owe it to yourself to cross-shop a bit. Cross-shop the spas *and* the dealers. The J-495 is roughly comparable to the Sundance Maxxus (with lounger) or Aspen (without). You might also look at the Hotspring Vista (with lounger) or Grandee (without). I'd also suggest D1 spas, but I'm not sure if they have something that's just the right size for you. Take a look.
If you or your family is sold on the Jacuzzi name and the 495 in particular, and doesn't want a whole cross-shopping buying process to go through, you can at least rest assured that Jacuzzi is in the top tier of consumer spas available on the market (along with some of those other brands I mentioned above). You will be getting an absolutely fantastic, high quality spa -- but you won't know for sure that it'll be the best possible fit for your family. Choose wisely!
On price, I'm not familiar with the 495 specifically. I paid around $11k for the 470 during the Labor Day sale, and I'd guess the 495 would be at least $2k more? Maybe others here can help on that front.
Hope this helps!