here is my feedback for the Porteus-Kiosk 3.2.0 including the latest (automatic) updates until now (20150213).
I'm very surprised

- fast
- looks good
- stable
- the check for automatic-updates works fine after booting into Porteus-Kiosk
- the pre-configurated Firewall is awsome
- secure (I'm not an expert but belive in development / developers / Gentoo
- the Kiosk-Wizzard is nice and easy to set up the configuration for the Kiosk-PC
- the possibility to upgrade the Kiosk-System either with a Donation or use the paid-service.
Note: I'm using Porteus-Kiosk at home (private use only) but know some people interested to use PK for commercial use -> I will tell them about my good test-results.
Once again, I'm very impressed!

Thanks and keep on rocking
Globalman