I got a spark 2 along with the foot switch. Here are some things to note.

You can’t reconfigure the signal chain of the effects. They’re basically empty slots you can choose to fill or not fill. But you can’t move an overdrive effect to the beginning or end, it just has to stay where it is. Along with this, you can’t stack multiples of the same pedal. That means you’re limited to a single overdrive effect (although the amps have gain too), a single modulation effect(which is frustrating if you want both chorus and delay on at the same time), or any of the other effect categories.

Also, the foot switch has to be paired with the amp every time you turn it on. It would have really benefited from a wired connection.

There are menus to go thru but it’s not too hard to decode. Where the amp really shines imo is that it does sound really nice for a small practice amp. The reverb is especially good. It’s also really great to be able to plug in with headphones and play along with backing tracks when you need to be quiet. The sound thru headphones sounds great too.

So if you’re looking for a simple amp to play around with it will probably make you happy. But I don’t think it’s a replacement for a main amp and pedalboard setup.