It handles all my maintenance tickets, communication with tenants, rental payments, screening, receipt tracking, listing etc (I haven’t used the listing service yet but they offer it for free).

This helps with claims about dirty water etc.Either way you go, the takeaway is being able to consistently maintain a certain level of service and being prepared to integrate this into your team's schedule/management work flows. 

Communication was not good so the entire process so I said no..

Set up your CORE 4 which consists of a good Realtor, Contractor, Property Manager, and Attorney.

“Bad” if they lose all money, or if they lose some money but fail to communicate.  

Regarding how countries treat foreign investors I would say there are two points, 1) yes they need to not be too arduous on foreign investors, but what's more important is 2) that they are consistent and predictable instead of arbitrary. 

All you can do then is drop the price 5% consistently, until activity is acceptable.

So much can be done online, and while you DO need to be reachable by your guests, you do NOT have to be reachable within 90 seconds, so don't feel hostage to some unreasonable standard of communication. 

I personally don't want to use them again mainly because of the lack of communication 

Communicate and set expectations.