Fee is the major bottleneck, difficult to scale and sustain. ETH 2.0 might solve some problem, there are promising candidates like Poly, cardano etc. Hive is indeed amazing in terms of transactions, many reliable systems can be built on it. Hope the market recognizes this sooner.
RE: You Can Send Millions In BTC For a Few Bucks in Fees, But You Need $100 on Ethereum for "Ants Transfers". Hive, You Need To "Kill It"...