Few words explanations.
Im sorry to heard abotu problems with previous Distributor.. Actually all USA Customers we can support directly - by email, direct computer control etc.
About Kore 5th unit.
1. Doser cant change his setting byself. It simply not possible and if its correctly programmed it will work with programmed schedule. I dont know details about your optical sensor/kore 5th issues but maybe you had first generation of unit connected to newest optical sensor and thats why it wasnt working properly.
We dont know it was second hand purchase or directly new unit from shop - no details dont give us a chance to tell anything about that.
You need to remember that one year after first release of Kore 5th units - we relased 2nd generation which had little modified outputs(reset button, colors of floating sensor etc),
Maybe you had mixed parts from 1st/2nd generation and thats why it wasnt working properly.
If anything is not clear our support will explain everything and reply to all questions.
About Mac software - if you are using latest software and firmware it have to work properly.
Im using it every day in my own home - only problem can exist if your BT module signal is weak or you are using iMac computer with shared BT module(between doser and keyboard/mouse).
If you need any support with firmware/software upgrade - you can send mail to our
service@pacific-sun.eu and they will give you detailed manual step by step what should be done.
It's really quite easy procedure, everything can be done wireless using dedicated app working under Mac OS X.
As I understand your last sentence - you were using GHL doser (first generation). Yes, they are very realiable units but if you will compare Kore 5th doser to this first generation GHL doser not right - Kore 5th unit is device which offer much more(its completly different level of control and additional features) than GHL so complication level(also adjusting/programming) will be higher.
But you can feel free to ask about everything our Customer Support - they will be glad assist you in every single question/programming procedure.
We are open for Customers feedback and since 2014 year we sold almost 1200 units worldwide - and still this product is evaluated and improved however many, many Customers are very satisfied with using it - a specially after some days spent on programming lessons.
Thank you for understanding.
Regards