The double penetration aspect is exactly what I was looking for, and the twin shape makes it easy to use solo without any awkward fumbling. My partner and I tried it together last weekend and it worked way better than expected.
Didn't expect the twin shape to feel this natural, but the two ends line up perfectly and it's honestly the closest thing to real double penetration I've tried solo. The base is sturdy enough that it doesn't wobble, which makes it way easier to use hands-free with a partner too.