Junimos can walk through crops that you can't walk through, so you can plant big chunks of hops or other vine starters that you wouldn't normally be able to harvest from.
You forgot to mention that you need to grab the magic ink from the table in the witches hut to be able to access the book for magical buildings. One of which is the junimo hut
Its so cheap and easy its great for crops that keep producing. Plant a load of corn near it start of spring and come back in winter and you have a tonne of it. Nice to be able to do other things
I mean, it’s fun, and does help a bit, but I think that it isn’t something you should be using a bunch of time and resources on in the stead of some of the other things you can do. But if it’s relatively easy for you to get, you can if you wish, no harm done.
Definitely worth it, especially for multiple producing crops like blueberries and cranberries, or beans and hops - you can even cram everything full of trellis crops because the Junimos can walk through them. They're great for planting at the start of the season and then never having any work again for the whole season.
