Is arbitrum worth buying?

Could you please elaborate on the potential value of investing in Arbitrum? I'm considering adding it to my crypto portfolio, but I'm unsure about its long-term prospects. Could you assess its technological advancements, market position, and potential risks? Also, how does it compare to other layer-two scaling solutions? Would it be a wise decision to invest in Arbitrum at this point in time, given the volatile nature of the crypto market? I'm eager to hear your thoughts on this matter.