Does your Tahoe have a factory towing package??
If so, then you will have a very easy time with the brake controller/trailer wiring/hitch setup.
If not, then you will have to do some additional setup work:
Transmission cooler, trailer wiring to the car end plug, brake controller wiring, tow hitch installation, etc.
I use a standard weight distributing hitch, eaz-lift, with a single sway control.
It does the job of leveling my Suburban and trailer, and feels alright while towing.
It's not great, and there is occasional sway, but overall it's ok.
Forum members seem to like the dual cam by Reese alot, as wella s the Hensley Arrow. I imagine that the closer you get to the limits of your tow vehicle, the more the investment of the Hensley makes sense. www.hensleymanufacturing.com
You will be at the limit of your Tahoe's performance on hills, but in my opinion, it should pull a Safari 25 just fine. This is providing you set up the tow system just right. You should find out first if your Tahoe has the factory tow package.
I own a Tekonsha prodigy, and it's vastly superior to the Voyager I used to use. I have not tried the Jordan, but have heard nothing but good things about it.