Don't let a designer talk you into paying lots of money for a website because it looks "flash".
Too many "whistles and bells" distract the viewer. Your site is not an entertainment channel; it is there to win you business.
Furthermore too many gimmicks can slow the loading time - especially on mobile devices.
Think about the way people search the Internet: they click from site-to-site searching for the information they want.
You need a site that in a nutshell conveys information and answers questions.
You may only have a couple of seconds to engage your customers' attention. The design of your site should concentrate on that.
Simple is always best - don't be too-clever-by-half.