My automatic questions would be...What happens after the 90 day trial period?
Then I am to be released from the 90-day contract. Believe me, this is a BIG ONE for us since First Data stole from our acct even though we had contractual proof that we canceled w/in the 90 day trial. 
Would it then become a lease, a rental, sale, etc? What is it going to cost us after the trial period?The set up fees (pays to program the terminal), wireless monthly fees(access fees similar to cell service) and monthly service fees(for the processor to coordinate it all) for all three machines is normal, but the $100 a month service agreement..what is it for?
I agree...after I typed that, I asked myself "What is the $4.95 service fee if the service agreement fee is $100 per month?" And why are you paying it on the machine you already own? This sounds like a rental or lease fee for the equipment.
Which means you aren't really getting the terminals for free and you certainly shouldn't be paying it on the machine you own.
Now they didn't claim it to be 90day free trial, just 90 day RISK free trial. I'd be getting clarification on these fees. As for the processing rates, the rates you list are competitive, but they aren't giving you the entire picture. What are the mid qualification and non qualification rates? Qualified (1.64%) applies to normal consumer cards that are swiped in the machine. Mid Qual applies to rewards cards(ETA-I see they tell you the rewards %, but the non swiped might still be higher) and cards numbers that are not swiped for whatever reason. Non Qual applies to business cards and non swiped transactions that you do not get address verification for.
He did say "there are qualified, mid-qualified and non-qualified rates. You will deal mostly with qualified rates, which are....." Personally, I would rather NOT deal w/ NOT swiping cards. It seems riskier if the card doesn't swipe in the first place. Depending on how many rewards cards and business cards you accept you could be paying that rate more often that the Qualified.
Ask Chase what your card spread is.
What exactly is a card spread? They should be able to tell you from last year's statements. Keep in mind Visa/Mastercard determines how a card qualifies and has a long list of individual rates. The processor is lumping them together into tiered rates to simplify things for the sales pitch. Also...what is their monthly minimum?
We meet the minimums. Do they charge batch fees?
Good question! Statement fee?
No. Annual fee?
??? Probably shouldn't be one if we cancel w/in 90days. Application fee?
It was waived. And don't forget to ask about PCI compliance and fees for the annual compliance and possibly a monthly fee if you don't comply.
What is this? I don't know if we comply or not. I know its a lot, but if you cover all of those bases you shouldn't have any surprises! HTH