Yes, indeed – I used to be quite sceptical of them, thinking they broke the illusion of the base and drew too much attention from the figure, but I've grown to love what the 'boilerplate' adds to the figure.
I think they work best on centrepiece or very large models – the Ur-example of which is Titans. The bases are so large that nameplates don't dominate, and they serve the immersion of the game by letting the players refer to the units by name, which I've found makes things that little bit more fun.
Here's a couple of examples, which are from Battle Builder – the interface there lets you see how they'll look before making a purchase.
If it's appropriate to do so, you can use
my affiliate link and get 10% off with the code 'MournStarfall'.
... and if not, then by all means pop through the standard link:
https://www.battlebuilder.net/
I'm not connected with the company beyond the chaps running it being very nice and offering me the affiliate link; I'd thoroughly recommend them regardless.