Need counsel on a furnace that I merely put deposit down on? I have a 6 year prehistoric LuxAire Furnance that has be nothing...

I have a 6 year prehistoric LuxAire Furnance that has be nothing but trouble so I own decided to rip it out. AC section is a Goodman 10 years old + so I hold decided to stir to total new system...I picked Trane base on reputation and just go for the best Furnance because of my exp. with my ending furnance (95% Two Speed Variable) with a 15 Seer AC component and new Two Stage Thermostat...Total cost near rebates is close to 8,200...10 Years Parts and Labor covered...Is the price decent (I live surrounded by NJ) and did I make a suitable decision on products?
How concerned should we be going on for...
Answers:    sounds resembling a good deal to me
Canes and Walking sticks?
I live contained by FL and am a certified technician. I've seen unit down here go for impossible to tell apart money for a lower seer rating. So, based on the pricing for my nouns I would have to enunciate that that is at smallest a decent price for a trial install.