I received my Gush2 yesterday and gonna create a small review here so people can find this thread later (even after i delete my throwaway account, haha). I'm on my second gush (first one died) at this point, and my Gush2 only arrived yesterday but i drained the battery quickly using a manner of things (self control, Vibemate video sync, user patterns and anonymous link control).

Gush:
- Vibrations only
- Smaller in length
- Awful band (I never used this)
- Most lush or standard vibration patterns work for this
- Holds onto you without the band
- Battery lasts a little longer (I think)

Gush2:
- Oscillations
- Gush1 patterns don't feel the same, some don't work at all
- Larger in all ways (more bulky), length and width
- Better bands (about time)
- Nicer/softer wings that wrap around you
- Heavier and ALMOST doesn't stay wrapped without band, mostly stays in place without but it does move
- Requires a different kind of toy control
- With it's bulky size, you need to likely be 4-5inches to be enjoyed properly

Both:
- Rather quiet usage
- Hands-free
- Similar in price
- Will be good for teasing unless you're extra sensitive and then you may love it a lot more than i do
- All the app features work the same

For the Gush, i would put it both against the bottom of my shaft and at the edge of my tip and enjoyed the differing experience. I have not tried various positions with the Gush2 so not sure if it handles it well but there's a 'hotspot' for the oscillations expecting you to put it just under your tip. So ymmv. If you are reading this and wondering wtf vibrations vs osc means, think of vibrations as tiny shakes, and oscillations as big base-y shakes. I think it has to do with the size of the vibrating motor(s).

I think both are different enough that you may want to pick up a 2 if you enjoy the 1, just for a change of pace. But if you're weighing pros/cons, you should consider the size (your size), the bands, and the features. Generally speaking i think they are basically the same in most scenarios and either would probably be fine. Buy whichever catches your fancy on sale.

I may update this a bit later when I find a good (female) controller with this and give a better praise to the gush2 but for now i'm pretty lukewarm about it, but still eager to use it a bit more to see ;)

Cheers~