Yea I would say that this is definitely one of the best values that's been on the shop for a while. If you're wondering whether or not you should partake, I'd say if you meet any of the following criteria you should definitely use some gran on this lotto:
1) Definitely spend if you have a lot of gran to spend and you're missing some 1 stars, this lotto will fill in those holes in the most cost-efficient manner possible.
2) If you have a lot of gran to throw around and are missing a lot of cards in general, this lotto will help you fill a lot of holes in a very cost-efficient manner. This lotto seems to have around a 95%ish recycling rate from what I've seen, though, so don't be looking to get a specific card as it will eventually drain you; that being said, this is probably the best way to build up your collection that I've ever seen in the shop, and I don't think it'll ever get better than this.
The only players I'd advise to stay away from this lotto would be those who don't have a lot of gran lying around, and who don't intend on spending money. The reason I say this is because if you don't have a lot of gran to spend there's a decent chance you'll just end up with a bunch of random 1 stars. If you have around 500ish gran or so, I'd hold it instead to get a prebuilt as they usually have around a 90%ish recycling rate when they come out (while being fully playable as is).
As for those considering the EX lotto, I'd honestly say you should spend on the hyper lotto until you feel you're not really getting anything worthwhile first. The EX lotto is the best deal I've ever seen involving EX cards so far, but it still has a 50% recycling rate (compared to the 95% for the hyper lotto). The hyper lotto is overall a much better deal.