All sessions completely isolated from each other. What I like about SBIE is i can have one session for banking only, another for general browsing and yet another for emails.

No noticeable issues with browsing speeds either. I have it running in my Virtualbox OS thus, in essesnce, I'm double sandboxed. Still, SBIE's been an excellent way to protect your browsing sessions and more since you can actually run programs within SBIE as well. Even sandboxing has their weak points (such as keylogger injections which I mitigate by using Virtualbox OS that I often recover to golden set point). Dare I say there are no anti-virus programs that will protect your system against 100% of PC viruses. That said, I trust SBIE's sandbox abilities over Edge any day of the week. There's still the Edge sandbox issue that has yet to be addressed (they tried but are having difficulties working with this) so you still have to implement a workaround. The Open Source version is now awesome (wasn't in the beginning for the new OSs due to the certificate issues, but worked fine with XP since version 3.4 which is the only version compiled for XP users). Used SBIE everyday since 2009 and it's definitely gotten better. That's how much I trust using sandboxes over depending on anti-virus/spyware programs. Better than leaving my browser session exposed to the wilds. Only recently have I even started using SBIE in my host since more and more online stuff's becoming incompatible with XP.

Trust me, there is no anti-virus worth a so I just use Defender within my main host. I have one just dedicated to online banking for instance. I also run multip SBIE sessions depending on function. It's how I mitigate against keyloggers (only weakness with my protection scheme). Often enough I recover to a golden set point within XP VM (takes about 10 seconds no joke) once doing so, everything that happened after that set point never existed. Don't even use an anti-virus program within my VM (some anti-ad software like privoxy only).

Been doing this for the better part of a decade. Within XP VM, I run SBIE so in essence, I'm double-sandboxed. I use Virtualbox and run XP as a Sandbox to protect my host OS.

Sandboxie 2020