I suppose that by now you are already trying NYM, so looking forward to your feedback. Cure53 have also recently released an audit[1] where most of NYM was audited and, in their conclusions, there's an interesting take:
Hello, not really, I am still using Mullvad. But I plan to do it soon enough and I 'll post in this thread, because I am curious as well.
I plan to test:
1. IVPN
2. NYM
As someone who has used IVPN in the past, their servers and customer service was great. At the time I still had to use an e-mail to register but now they've implemented a similar system to that of Mullvad (random ID generated). Pricier than Mullvad, but I also didn't face as many CAPTCHA as I sometimes face in Mullvad. They also haven't been serviced an warrant as of today[1].