I'm currently running 3 games of 5e, and at this point I've only handed out a single magic hammer... which was immediately lost to a TPK and is currently in the hands of -REDACTED- in Stonehell. That group remains at 1st level. The other two groups are 2nd and 3rd level, and thus far none of them have felt very keenly the lack of magic items.
Not that there's a big selection to pick from at the moment - officially. A mere 18 different items grace the closing pages of the DMG basic rules 0.1. Granted, these items provide a pretty clear means of adapting items from other editions to 5th (and by adapting I mean taking without much change at all), but it's still a slim selection.
So what are you doing/experiencing in your 5e games? Have you handed out magic items? Has it made much of an impact?