I would suggest a new menu, the tabs aren’t that attractive, and don’t look professional (to me). But that wouldn’t discourage a customer.
You probably want to fix some contrast issues with the white text on light backgrounds. For example, the box on the right, “Search for a Holiday”, the text is too light for the background.
Way to much content. You need to remove a lot of content from the main page, there seems to be non-stop content, and visitors will only look at your site for 5 seconds after it loads to judge it, and if they get overwhelmed by all the content, they click on the back button and keep searching in their search results.
Okay, now for positive feedback…
Your site looks professional, just clean up some of the content on the pages, and fix some contrast issues, and the site’s great! Good Job!
Cheers,
X96 WD