I have the gravity dropper turbo, been using it for about 10 months now. It just works and I am really happy with it. I like the fact that parts are readily available and cheap so if or when something goes wrong I can fix it myself. I am limited by a 27.2 post though and the GD was by far the best choice.
Couple of mates have the Reverb, used for the same amount of time and they are also really happy with them. They haven’t has any technical issues yet, just the odd bleed.. They like the fact they can adjust the height of the saddle to any point. Where as the GD only has 2 positions.
Like above, not much experience with other brands. I looked at the x fusion and it seemed pretty good.Some hit and miss reviews…..but when I found a bargain price on the GD I jumped at it.