I think it will/is usefull in different ways that we all hoped for. Everyone hoped as a magic bullet for instant free txs, instead I think it is great for interop between L2s (Liquid, Fedi, Cashu, Ark)  seamlessly and instantly, good merchants that run their own LN node and it will be the rails for most Fiat txs, apps like Strike, CashApp etc. LN will be the protocol that connects everything. Most users will use other L2s like Fedi or Ark.