I've been using them on and off for a while and I have found the focus mode quite good. If anything sometimes it's too good, I almost feel wired like when I've drank too much coffee, but it has helped me when I need to get stuck into something that I'm procrastinating on.
When I was travelling last year I used the nap / sleep mode a bit and I found it did help if I was finding it hard to sleep.
Of course this is totally subjective so your mileage may vary.
When I was travelling last year I used the nap / sleep mode a bit and I found it did help if I was finding it hard to sleep.
Of course this is totally subjective so your mileage may vary.