I'd assume regardless of QS .info will drop your conversions because it just looks like some scam shit. Never really cared to try it though.
I guess it depends on your demographic. If you're selling to webmasters your conversions might drop but everyone else doesn't really know/give a shit about TLD's and what .info is.
.info works great for the right purpose. It's all about advertising, isn't it? Every element you use correctly contributes to the success of a campaign.