Our company is still a work in process, but we've got paying customers and 5 on 5 as average review of the product (http://apps.shopify.com/fanchimp), plus two seed rounds of funding.
Sentimentally we've been together for 7 years, working as co-founders for about 5 now. We're happy and we're focused long term.
Thanks for the comment, yes we're still working on the startup and you're right, there aren't any big success with two co-founder in a relation.
Although my friends at AgentPiggy and http://www.gym-pact.com/ are going pretty well.
I get the point about getting to work with the best people in the world, I personally think that for the beginning of a company is better to be all in the same room. Remote working is fine for bigger companies imho.
Here's why having a complete founding team for your startups will make you create a better product and run more experiments than using an outsourcing company. This way you'll do more and you'll increase the chances to succeed