I am having the Goodman CPLT30 and AEPT36 installed and I want to take advantage of the Dehumidification feature of the Air handler and my installer has recommended the following thermostat.

That is one expensive thermostat. Will this thermostat work perfectly with my system and is this a relaible thermostat??

My installer also stated this was an easy thermostat for them to wire up to my system and that is another reason they want me to use it.
I was wondering if the A/C unit has been sized corectly I should not really have any humidity issues and I could go with a cheaper focus pro thermostat??

What do you guys think?? Is this thermostat overkill??