I made the switches firefox --> chromium --> rekonq (and at rare occasions the CLI browser links)
I have aimed to try to switch from rekonq + dolphin to Konqueror, but even in webkit mode it does not really work that well compared to rekonq (and has a "fatter" interface which I dislike). I hope the KF5 incarnation of konqeror also will switch its web engine to the chromium Blink (former Webkit, former KHTML) which might make it a viable option.
I like the idea behind Konqueror, which ties together lots of different KDE programs in a very nice way (file browsing, web browsing, PDF reading, Image viewer ... possibly also Calligra document reading).
I have noticed that I lately gravitate towards as many native KDE apps as possible, which is sort of the opposite of my recent attempt to go as minimalistic and suckless as possible