I really didn't need to buy another synth, but their fair upgrade prices got me again.
For some reason I couldn't see the Wavelengths presets. I googled for a solution and found out that deleting a temporary file called "db.db3" in "C:\ProgramData\Arturia\Presets" and restarting helps.
https://www.trustpilot.com/review/pluginfox.com
I haven't bought from them, but they've been around for a few years and they're getting mostly good reviews. I don't see any reason to avoid buying from them.