As long as they were including whole home DVR yes. You will be able to record up to 7 things at once and watch any of the recordings on your 5 TVs. You will have to have a standard LNB and SWM 16 installed because you will be at 10 tuners.
As far as the installer you will get whomever is available. Sadly some techs are not as quilified as others. Ask them a few questions before they start and you can probably tell if they know what they are doing. If they try telling you that you don't need a SWM16 then they don't know what they are doing and you will need to ask them to call their supervisor and get it straightened out or send someone else to do it.
As far as the installer you will get whomever is available. Sadly some techs are not as quilified as others. Ask them a few questions before they start and you can probably tell if they know what they are doing. If they try telling you that you don't need a SWM16 then they don't know what they are doing and you will need to ask them to call their supervisor and get it straightened out or send someone else to do it.