Yet I only have 80mbit/sec of bandwidth so for me its not underpowered, the majority of the uk does not have those kind of speeds so is not an issue.
For banger he would be fine.
For Lan speeds, I hit around 300-400mbit/sec, which is also fine, and I be surprised if that his concern, I expect he just wants solid internet speeds.
I am also trying into account he brought the zyxel meaning his budget is probably going to be on a similar level, but yeah if he has higher requirements than 300mbit/sec, then he should get a different WAP.