I have a friend visiting for a few months from Russia, shes 29 and in great health but we want to make sure shes not stuck with a ginormous bill in the 3 months shell be here just in case. I was looking at some options here, http://www.visitorscoverage.com/visitor-health-insurance/quotes/

Is there something I should watch out for? The coverage seems affordable and I think shell go for a 100k policy with 100 or 250 in deductibles. Companies I should watch out for or companies with better reputations?