Periodically I compare my 450 unpowered against five other 450 unpowered cubes that are regularly updated and with a similar design philosophy. Just happened to perform this review two days ago and was surprised to find running Gilded Goose was an outlier - four of the other five cubes no longer ran it. I personally think it still merits a slot, but it was food for thought.
I'm intrigued by the recent sea-change regarding Kodama's Reach and Cultivate. Cultic Cube just put out a video that says the same thing. These cards have been generally agreed upon for a long while, but seems like they might be turning into Sacred Cows. I guess I haven't been wowed by them either, but I think they're generally fine. Since this card also can fix this does seem like a good choice to replace one of them with if I'm going to try that.
This has some interesting tradeoffs with Mana elves.
You get flying and an extra toughness - good against 1/1 tokens including spirits.
You get color fixing.
You get the ability to ramp for two or even three mana of any color if you invest additional mana into it early.
Potential life gain/artifact synergy
in exchange you lose
the ability to ramp more than once without investing additional mana.
If the bird is killed and you have nothing to cast you are left with food which barring some additional cubeable cards that synergize with food (beyond Oko) is not great. Getting hit with removal in response to investing extra mana in food is pretty painful.
All in all, I think this is probably worth swapping out one of the Llanowar Elf variants for a test. This does ramp AND fix, even if only once and unlike BOP if this gets killed you still got some minimal value. Also, if left unchecked for turn 1 and 2 it will ramp AND fix twice. What other 1 drop can do the same? I know consistency is king in cube, but the heightened ceiling for this card helps balance out the floor.