I had the wide Avid memory foam, when it first came out. Not cheap £250, but amazing comfort.
Got nicked out my garage 🥺
Got given one after the break in. Seems OK, better than a few others ive tried & trashed. Definitely, not as comfy as the Avid.
I always find with my bulk I have to stretch the bungee chord every now and then when I hit the frame.
As above the Sonik rods I've had are prone to falling apart. I tried to claim on the lifetime guarantee and get ignored. I wouldn't waste my money on their kit. Buy cheap, buy twice & all that