Well when they test your connection their testing their server, so of course you will have your 5mbps speed. I have the 10mbps service from them and when I download stuff I go around 2mbps when it gets all warmed up. I like it, never have to call for tech support or anything. Had connection for two years now and haven't seen any reductions in speed. Zoomtown working just fine for me!
Glad it is working fine for you, because my speed is slow, and keeps getting slower day by day. Would love to find an isp in my area. I can't even get my internet to stay connected to watch netflix. Hope your internet continues to work well for you, or you will be in the majority of the ones that are fed up with Cincinnati Bell!