TLDR. I would recommend this
TLDR. I would recommend this if you're looking for a practice amp with built in effects. The software is a little annoying with volume levels, and limitations and AI doesn't really work.
I recently got a spark 2 and I really like it. My biggest issues with it is the volume. It can get very loud which is nice, but if you want to preserve your hearing or the sanity of other people in your house it also can be quiet. However problems arrive when you switch between presets in the amp, some presets don't sound the same and different volume levels so you have to physically turn up the volume of the amp to get the effect which makes it louder. There is no way to set it so that the effects work at different volume levels when you switch presets and this leads to a lot of messing around between changing affects. I feel like this could be fixed in software. Secondly I think that for 350+ dollars all the pedals should be free and not limited behind an additional 20$. Also if everything is digital there should be the option to add multiple of the same type of effects or have more control of the signal chain as well as the ability to create your own pedals and effects within the app. Finally the ai integration doesn't really work every time I've asked it to make a preset or try and get a sound from a song. It comes up with the same preset.
All and all I like the spark 2 and I hope that these issues will get addressed with future software updates to make a truly phenomenal product