Bun

This one is probably best suited for longer sessions. The interiors aren't that stimulating, and the softness further dulls the overall sensation. But this combined with the thickness of the onahole creates a nice full bodied feeling of envelopment, and a decent impact if you like the thicker toys. As for the durability, the onahole doesn't tear easily, which is a huge plus for soft onaholes, but it does stretch out overtime which doesn't affect the overall feel of the toy, but does impact its ability to retain lube.

Another niche toy, if you want something more relaxed (perhaps a little to relaxed) this is probably one you wanna consider.

Overall its a great onahole. The inner material has great slightly firm texture and the outer layer is a nice soft material to handle. The design itself is nothing crazy, but its quality is Magic Eyes at their best.

As other reviews noted, it will leak like crazy due to the tapered shape of the tunnel and also the lack of any choke point at the entrance to catch the lube. But this design also comes with the benefit of being less prone to tearing and easy to clean.

If you're looking for something on the softer side and for longer sessions, this is a pretty good onahole to fit that niche.

Compared to its predecessor, it sports a much softer material, is able to hold in lube better, but the stimulation is much more dull. Which may or may not be something you're after. It still has an intensity to it, but it's a very blunt one.

Also coming from the Fuwa Toro 2000
These are incredibly soft and the hefty base, while floppy and annoying to handle sometimes, does add a lot to the experience.
However they do have a couple faults worth mentioning.

The outer layer, while great to feel, is pretty delicate like your average soft onahole. The material gets thinner on the sternum area, which makes it prone to micro-tears, especially with the base being incredibly floppy. You will also definitely want to trim your fingernails to avoid potentially causing indents on that outer layer also. But none of these issues really affect the overall experience of fondling and performing paizuri too much. You'll just want to be a little bit extra careful if you want this toy to last. The toy has one of the more harsher odor problems, but it's nothing overbearing and does fade overtime.
This next issue may or may not affect you, but on the unit I recieved, one of the nipples started to come cleanly off due to not having bonded properly the rest of the toy. But some research into sex doll repair, and I have managed to find a way to fix the issue with only some minor blemishes due to my inexperience.

That said, I still highly recommend these toys if you're looking for a soft breast toy. They're just too fun to play with, and these issues only really stop these from being a perfect breast toy.

It's a pretty solid onahole at this price point. The texture is okay, the first half is great but the second half leaves a bit more to be desired, it kind of just fades into white noise. One flaw worth mentioning is that depending on your lube and how you use it, this toy might leak a lot on you.