I have already operated the TP-Link TL-WR1043ND in two rooms with a DD-WRT. So far, still no DD-WRT is unfortunately available for the new device - but I think that there is still something will follow. The performance in WLAN is gigantic compared to WR1043ND. I can do with my MacBook Pro 2010 easily about 19MB / sec over the wireless network. By WR1043ND warn about 8 - 9 MB / sec possible.
The firmware of TP-Link can now be seen and actually provides all Funktionien.