Some churches choose an upbeat presentation, with current technology and modern music. Others prefer the traditional style and format for their services. Who's to judge what's best? How about judging by what unchurched people think?
Here is a radio conversation among 3 very un-churched people about their impressions of several traditional churches, and one new, contemporary one. Given that these are opinion-shapers (in England), I would expect that their opinions are very widely shared.
If you have difficulty playing this video, click on the title: "Traditional or Contemporary?"