I don't like infos. Especially if it's unclear where they are. One solution I've seen to this (but only two orgs to my knowledge use it) is to put the info on the route, rather than the route on the info; that is, to put a notice somewhere that the route passes, with the answer to the info. One example is Barry's Bristol Ball Buster, the info by the Somerset Monument always consists of a name (usually rock n roll themed, though last year it was Mike Hall) taped to the back of a bench. Most people fancy a breather there anyway, cos it's at the top of a steep hill, gives great views and is early enough in the ride for people to still be in groups but far enough in for them to have got to know each other a bit.
Nowadays I often don't stop at an info, if it's something that can be noticed and remembered by riding past. This means I arrive at the next control without the answer written in my brevet – and often the controller just writes it in automatically! Which kind of brings the point of infos into question.
So I'd rather ride an extra 10km on a good route than have three infos, but if infos are deemed necessary in order to have a good route, I'd go with that.