the answer, unfortunately, is not simple.
It depends on many things :
1. which and what manufacturer of devices do you want to use ?
- fibaro devices : choose Vere or Fibaro
- devices from other manufacturers : choose Vere
You need to know beforehand which devices you are going to use. Spend as much time as possible on it, because it is worth it. There are huge differences in prices, functionality and reliability of devices from various manufacturers.
2. Polish language
- Fibaro : interface fully in Polish, documentation mostly in en and fr, very poor.
- Vera : the latest control panel is not yet fully translated, previous ones are. Documentation mostly en but good.
3. Support for standards other than Z-wave
- Fibaro : no
- Vera: yes , several extensions over USB (Insteon, RFXCOM, EnOcean, RS ....)
4. Plug-ins for other systems
- Fibaro : not yet fully operational
- Vera : yes
5. Performance :
- Fibaro : 8/10
- Vera : 5/10
6. Mobile applications - my subjective opinion here
- Fibaro : for smartphone and tablet (Android and IOS), nice but not really ergonomic, closed to changes
- Vera : several , for all platforms, flexible, customisable
7. Open to modifications
- Fibaro : closed
- Vera : everyone gets a root password
8. Security
- Fibaro : HTTP
- Vera : HTTPS
9. Z-wave standard
- Fibaro : 3.x gen (change announced but not known when)
- Vera : 5.x gen
10. Networking of several control panels
- Fibaro : yes
- Vera : yes
11. Service
- Fibaro : on site in Poland, available even at night, large network of showrooms in Poland
- Vera : you can only rely on the forum or alternatively call the US hotline
I know that I have not helped you much, but I hope that I have at least directed you a little on what to pay attention to.
I use both PBXs and devices from different companies in a very complex configuration.