I also use a pair of TP links for a single room where I haven't found the time to route some proper cabling to. Just as others have said - they are the worst option and should only be used if absolutely nothing else is available...
They are slow (like sub-100MBit slow), even if they claim 1GBps speeds, and they loose connection every now and then, so I also have to unplug one of them every ~4 months or after a power outage.
From what I've heard from friends and colleagues who were also forced to use such toys, this seems to be the state of the art for those things. The dirt-cheap no-name ones are a bit worse, the 'known' brands like tp-link or fritz are a bit less worse. You have to decide what price tag you are willing to fulfill, but there really is nothing "good" on the market for this horrible piece of technology...
In other words: If you can use a WDS-bridge in your scenario, ALWAYS go for the WDS-bridge.