Building a new large patio in northern Virginia and placing a hot tub on one side. I am new to the hot tub world and like other newbies I am surprised by the amout of brands and models there are. I am down to 2 Caldera salina(now makena) vs sun dance chelsee. Honestly they seem the same to me. This may seem stupid but I like the waterfall feature better on the caldera. (I have 3 young kids who love playing with water). Please help?