I tried the HF8 when it was released and I didnβt care for it. I found it to be uncomfortable to sit on but I also own the Jetpad from Andre and that one is very comfortable to sit on. The Jetpad is still obtainable but you need to reach out to them via Andreβs website (contact us type link). I wound up returning the HF8 and plan to get a second Jetpad as a spare. The HF8 was also pretty weak with the vibrations when I tried it.(like very weak) and I had everything maxed for settings etc. Maybe they improved that part since release in some way. I had hoped that it would be an equal to the Jetpad so people could have a choice in terms of what to buy but at least for me, it wasnβt very good at the time.