One thing I'm confused by is the "$$$" signs on trips. They seem to be roughly the inverse of what I'd expect. My guess is that these are trying to combine too many aspects – travel distance, duration, price perception of the destination – and that because of this they're somewhat meaningless.
Example, Paris for 3 days is $$$, and LA for 3 days is $$. Paris is definitely cheaper than LA when you're there assuming you don't do a tour of tourist traps, it has cheap public transport, and for me it's a cheap train journey away. Conversely, LA is an expensive international flight away, expensive to stay/eat out in, and expensive to get around. I assume the $ signs are this way around on basis of US tourists travelling domestically?
In a similar vein, I suspect the budget part of the site just won't translate well. Budgets might vary by an order of magnitude depending on where you're coming from, what sort of transport options you use while you're there, whether you choose to stay in upmarket hotels or cheap places, which restaurants you go to, etc.