I'm obviously biased, but I've played a lot of solo myself to get the hang of it. It also lets me pause the game, which is nice when life happens. The Bosco drone is a nice companion, and with the latest upgrade, he can fetch larger gems for you, making some of the more difficult areas a breeze. He also has some combat upgrades.
Adding to that, the community is very friendly and helpful - you can join our Discord on discord.gg/drg to find games, talk about builds or post fanart, screenshots and memes. Playing with randoms is 95% of the time a nice experience, so don't let your friends keep you off of Hoxxes IV.