I really like this mattress. We had a casper before and I woke up sore/stiff everyday. I did the sleep quiz and we ended up Helix Dusk Luxe. It's been great for both me and my husband (back sleeper, side sleeper). We experienced a shipping delay and the customer service was meh -- I think they offered me $25 off, which in the scheme of $2k purchase is a little disappointing. We also got 2 free pillows, which are too firm for my liking, but they are nice pillows. But the mattress arrived within a few days of the original delivery date and we are 8 months in and still well rested.
Customer service wasn't great, but I think the team wasn't equipped with tools to actually help customers with issues. Maybe this has changed?