What's the best kava to buy?

Could you please elaborate on the topic of "What's the best kava to buy?"? I'm particularly interested in understanding the criteria for selecting the finest kava. Should I prioritize the origin of the kava, its processing methods, or perhaps its taste profile? Are there any specific brands or varieties that are known for their superior quality? Additionally, how does the price factor into this decision? Is it worth paying a higher price for a more premium kava, or can I find a good quality one at a reasonable price? Also, do you have any personal recommendations based on your experience? I'm looking for a kava that offers a balanced and enjoyable experience. Thank you for your assistance in this matter.