stick with the Pioneer line, get the most that you can afford — btw the absolutely cheapest setup especially if you already own an iPad is the WeeGo — dJay for iPad is legit and Spotify premium integration is worth every penny. Don’t let the “consumer” moniker fool you — this is a pretty good setup that has worked many times when I didn’t feel like carrying the laptop or DDJ-SX
Haven’t heard of any stuck issues — usually setup / config related