I wouldn't go back. My Kobo Aura was my first experience of a frontlit ereader, and I fell in love immediately. We have environmentally-friendly long-lasting lightbulbs which are kind of dim, so even reading in the living room in the evening is better with the frontlight on. I only have the light set to 10% brightness, but that's enough to make the contrast better without it really seeming to glow.

And it's nice not to have to worry about carrying a booklight, or - more importantly - whether it's still my booklight or whether my husband has stolen it. The good thing about an integral frontlight is that nobody can steal it and then give you an innocent puppydog look that says "What? Your book light? But I thought this was MY booklight! Of course, if you want to stop me reading just as I've got to a very exciting place, I'll give it back. I won't be disappointed at all, and I promise I won't think you're an evil, mean, unfeeling, cruel wife..."