Just try the LN testnet recently.
Use eclair apps and htlc. Eclair had to fund with bitcoin test (btct) get from faucet. While htlc once open wallet already funded with tbtc. Ecalir required open LN channel atleast 0.001 and fee 0.0001.
Transfer payment from eclair to htlc using LN channel.
-fee as low as 10 sat
-speed as fast as a few clickTransfer payment using eclair to starblock some kind of coffe shop offer virtual test coffee ordering.
- fee around 0.00000010 for 0.00001900 btct price
- speed also fast as per a few second
- but there are still pending and failed payment encounter. Can't figure out the problems.
Transfer payment to yalls some kind of forum or buletin board that required some micro payment to publish and read. The transaction fee is 0 at reading cost 0.00000075 btct.
Overall LN network payment micro transaction was very good in term of fee and speed. But if funded eclair wallet still using blockchain the tx fee probably follow current fee that in my opinion still high at the time i'm use the testnet. But who know in real, coz this only test.
This is base on my experience only dont take it as fact.