Originally Posted by
corporate-wage-slave
Hopefully not, since unless there is a promotion on, it's very poor use of Avios. It's worth doing if you have no other use for the Avios, however.
I thought that bearing in mind you earn Avios and TPs, it can be a good use of Avios (as you effectively get back some of what you spend). Happy to be corrected though as I'm in uncharted territory, although it could be helpful for the OP.