I sent 200 Hive as well but ended up getting 18 back and receiving 169 WHIVE.

I've now add a swap pair of WHIVE and WETH to the liquidity pool and apparently for my $91 I've already earned $0.0023 :-)

As a method of buying ETH with Hive is this an efficient method?

I'm also curious, can you buy BTC or some sort of wrapped BTC?