I have a Tolino Vision 6 and its a piece of shit. An e- Reader with integrated backlight is nice, you can read anywhere and it doesn't matter how thick the book is- it always weighs the same. And you can pay less for E-books ( or not at all). Buuut my Tolino takes a random time between 1 and 3 seconds to change pages, can't read a lot of ebooks (it should do epub, but I just can't open some. same with pdf ), and randomly just freezes for a day or two. I already got a warranty replacement because my first one just froze and stopped for good (at a high tension point in the book. like bruh.)
To balance this out a little bit, I have a Tolino Vision 5 that I bought refurbished and I absolutely love it. I've heard not so good things about the Vision 6 so you're not alone with your troubles with that particular model, but on the whole, the Tolino ereaders are still worth looking into if they're available wherever OP is :)