Booster is not useful on more open/complex maps, because your eggs are probably spread all over the map. But it works on simpler ones.
One thing that bothers me with booster is that touching it doesn't refresh your poison/regen. For example, IF booster lasts 30 seconds (I have no idea), and your boost will run out in 5 seconds, you can't just touch booster and refresh your boost. You either have to forget it, or wait patiently 5 seconds and then touch it.