Never played a vanilla with TBC client. For sure this is not exactly what diehard vanilla fans look for.
However, being a full-time resto druid in vanilla, it was a really nice thing to be able to tank in instances in TBC and being an off-tank for a Karazhan.
So to sum up:
243vanilla.tk provides:
- PvE server !!!
- x1 exp rate
- no cash shop
- leveling 1-60
- patch 2.4.3 - so changes to itemization, quests and class balance
- alliance shamans - Draenei and horde paladins - Blood Elves
- Outlands perma-closed - so only old faithful Azeroth
Not a bad thing I would say, just I hope there can be 1k players at least.
Definitely gonna try - downloading game client as we speak.
So - 243vanilla - you will have +2 players (me and wife - yup - a RL girl is going to play vanilla wow

)