Which PPC bid management tool to choose and why?

ppc, bid management, marin software, kenshoo

[Hyponeros]

I am handling a huge amount of keywords and hundreds of accounts across several languages and search engines. I am now looking for a ppc bid management tool which allows me to manage all search engines (including Baidu, Naver and Yandex) in one place.
The two bid management tools that seem to stand out are Maritim Software and Kenshoo.

Did you select one of those two tools lately and why?

Did you consider one of those two tool but then decided for a third one and why?

Did you change the tool you used to use and why?

[me18787]

I have used both, and used both on large accounts. I would 100% go with marin. Kenshoo is very slow when syncing large accounts to the adserver api, and doesn't let you push changes to alternate channels if one channel is being sync'd (i.e., you have to wait till bing is done syncing before syncing anything to google). I also found kenshoo harder to navigate - their advanced search feature is nice, but I prefer the filtering in marin. I also prefer the dimensions in marin. Kenshoo has a few more bells and whistles in the bidding department as far as 'predictive technology' goes (supposedly), but with all the other drawbacks (plus, marin has a great a/b creative testing suite AND plenty of ways to auto bid), I would go with marin for sure.

[Hyponeros]

Thank you Me18787 for your input. Could you let me know when you used to use Kenshoo?