I did a two ton install in my garage and it is awesome but I have some hvac experience. The Mr cool ones seem to be great for novices with precharged line sets that are flexible.
Look up the DIY HVAC guy on utube... he shares allot of so-called secrets and takes you step by step thru several installs. I see guys advertising on craigs and marketplace for $400 for simple straight forward installs plus the unit which are priced competitively and incidentals and they usually have a big selection but allot of odd brands.
Just so you know, generally the 115v units are one ton or 12k or below so depending on what you have available for wiring really simplifies that part if that meets your needs. The higher voltage ones are usually a little cheaper size for size and generally a little more efficient and might last longer. Sizing a unit runs allot smaller than ducted systems especially if you only need it for a/c as they are not nearly as efficient at heating just like any heat pump.
