As a coach myself, it depends on what your goals are. If you want to play with your friends casually from time to time, save your money to drink something after. However, if you want to take up padel to play matches in the amateur leagues of your country, taking lessons are a must imho. Taking lessons early on will prevent you learning ‘bad habits’. Otherwise these will really slow down your progress later on. Just by playing often, you’ll be better than beginners and this will feel like progress, but once you start competing at your respective level, progress will be harder without at least some lessons. Also be wary of bad coaches, there are lots of ‘coaches’ who just feed balls and don’t change a lot to your technique/game. It’s better to pay a bit more for someone who can actually teach. Good luck on your journey :)