I have two Kobos, a GLO HD and an Aura H20. I love them both and read mainly on the GLO HD at home, the H20 is mainly used on beach holidays and in the bath.
But, I also have a Kindle Voyage. The Kindle is kept in my handbag and I'll always have a kindle because they have more books than kobo and I honestly think the devices and software and more reliable and stronger. I would never take just a kobo on holiday for example, but I would take just a kindle. Also the store is better and it's easier to locate and download samples and new books.
I would always like to have both a kobo and a kindle, but I always must have a Kindle.
The thing that bugs me about the Kobos the most, and it relevant to the holidays and taking the kobo out of the house, is the pin hole reset. Nowadays I don't carry a paper clip with me permanently, it's not a natural part of my handbag.
If kobo could change that and use the on/off button for hard resets I wouldn't feel such a need to have a kindle.