I have an edlebrock supercharger on my 2014.
I bought the truck used with 40k on it and I now have 51k.
The supercharger was installed when I purchased the truck and best I can tell from edlebrock based on manufacturer date the supercharger was installed around 36k miles.
I am the 3rd owner of the truck. 1st owner drove for 36k, traded, 2nd owner did a bunch of mods including the supercharger, then passed away from Covid.
I picked the truck up, at random and nearly freaked out when I raised the hood.
Now for the good stuff. The supercharger if installed according to manufacturer specifications has a water to air intercooler which holds down Temps. 2nd edlebrock's setup and in normal mode is limited to 5 psi boost. Track mode its around 8 psi. I run normal mode as I drive it daily in stop and go traffic.
The supercharger is instant power, spins up nicely and will melt the tires if you are so inclined. However if you drive easily its very streetable and the only issue I've had is in the rain, mostly due to the Goodyear SRAs, not power or the truck.
The tune supplied, works. It's not the best but it works. The transmission shifts perfectly and if you are so inclined will perform 6K shifts, if you are on the throttle. I have the 8 speed.
Daily driving mpg is 16 to 18, on the freeway its 25, with 3.92 gears and 22 tires. On 20s, freeway mileage drops to 22 to 23. Probably more a function of my resetting tire size than anything.
I drive 7 hours one way(approx 450 miles), on one tank of fuel. 26 gallon tank.
So, is it a decent deal, for 7k? Probably. You can get better. A Whipple for example. But you will most likely need to modify you engine as well. Potentially forged pistons, properly gapped rings, etc.
For 7k, it installs. It works, you can daily drive and even though I was told it would not last 10k, it's at approximately 15k, with no issues.
I ran it at the track. Got into the 11's. I've seen NA trucks do that, with less than 7K in a supercharger.
So take my experience for what it's worth. Nothing it's just 1 example.
If I was doing this from scratch, I'd probably install a torque storm, I think the entire set can be purchased and self installed for around 5.5K
One last comment to this long post. Edlebrock wants you to run stock TB, stock exhaust manifolds and stock muffler, so once you bolt the kit on you don't need anything else. I installed a boost and wide band A/F gauge. Neither was required but now I can see actual boost psi and afr.