It will be a ton of an improvement over the 150. Lots of power. My TT is light so maybe 5400 loaded and i load up the bed of the truck. It has power to pass and stop. Like a lot of it. I have no problem now passing big rigs on big inclines. Before with the 2012 gmc i had issues going up large inclines. I had to pull onto the slow down lanes for the trucks. Now , i can honestly say i pull faster, 70 ish. Where before was 60 ish. With 0 problems. Plus is more cab room, more bed room ( a lot). I like the back up camera for hitching up, and when your close you swap to hitch veiw to get it lined up perfectly. Also, it automatically puts the ellectric e break on so you dont roll out from the hitch. Other great options, auto scolls the lights for a pre check. No more needing a second person or a weight to hold the break down in the truck. I like it for towing a lot. Especially with a smaller trailor. It had a good upper limit on tow weights also. Longest trip this year was nj to lake george, so 4 hours. Also did a few trips to pa, through the water gap, big inclines. Mirrors are better to see out of hitched up. Only con is not great gas millage, and its big. So its my DD. Its fast.