The phone rep was misleading. Should I cancel the upgrade?

Called to cancel service last night, but the sales rep told me about GEN5 and It sounded pretty promising. I guess I should know better because I asked her if the 25Mbps down and 3Mbps up were guaranteed and she said yes. We all know that's a lie! She also said once I have exceeded my data limit of 20GB I will be guaranteed a minimum 1Mbps and this will be fast enough to stream Netflix. 

I asked if I could cancel my service without penalty if the service wasn't as she promised and she said that is handled on a case by case basis, but it shouldn't be a problem.

She also told me the GEN 5 service would be $5 a month cheaper than my current plan. She didn't mention anything about charges for equipment. Is there an additional charge for equipment?

With the old service I was frequently rebooting the Hughesnet box. Eventually they wore me down and I simply stopped using it. I have unlimited data with my cell provider, so I was just counting the days until my contract expired. The cell phone hot spot works, but it's a hassle for the wife.

After reviewing information here and elsewhere, I'm feeling that the information I based my decision on was deliberately false.

The technician isn't scheduled to install the GEN5 equipment until next Tuesday. Should I/ can I just cancel the upgrade and my service? We were at the end of our 24 months, so there shouldn't be any termination fee. Correct?