Excellent service
So, lets begin about claim stabile KPN network..used KPN for few years from different providers, was decent connection despite limited speed at my place.
Thus, when i got offer to get KPN network again with a bit cheaper pricing i gladly accepted offer..and this was a terrible mistake... Disconnections every 5-15 min...wifi 5 cheapest possible router and no possibility to cancel contract even when have actually unusable connection....you cant even watch yt video of 30-40min or hour series with several disconnections... Like for 1h episode you waisting 1,5 hour...most stressful experience ever.
Not sure about KPN itself, but with such subproviders will avoid any of their service in the future.
Budget internet - best ad for not trusting KPN anymore.