Just ordered insta360 Ace Pro

Since this is my first order with insta360 i have few questions

1) Any one who is already using this camera?? What are your thoughts

2) If I don’t like the product after trying out can I return it. Im from Singapore and ordered via official insta360 website

3) will there be an option to turn off HDR mode in lower fps settings?

4) how does it perform for selfies (general photography)

Thanks!