Feels solid with a slight texture on the underside of the controller. Sony really improved the haptic feedback and adaptive triggers.
Astro playroom, which comes free on the PS5, demonstrates all the features very well.
Just wish it came in different colours.
Edit: revising my review after my controller became faulty in under a month. It appears that joystick drift and loose triggers is a common problem with this controller. Hopefully Sony steps up the quality control and address these design flaws.