The answer is always "maybe" until you bring your threat model to the table.
I use a VPN to watch IPTV & download torrents without my ISP sending me nasty letters. Mullvad is great for that.
I would trust it in conjunction with Tor to protect me from low-level crimes. I wouldn't run trust either it or Tor, alone or in combination, to run a marketplace the DEA would become interested in.
If your threat model is obscuring your home IP to hide your IP from above board HTTPS sites, a DIY VPN probably is great. If it's to do low level crime, a cheap VPN is probably enough. Anything else, good luck.