Definitely. I use it from time to time, but rarely I can get through more than a short article without being too frustrated with something of how it works.

Things like pronouncing in an inintelligible way any english words in the middle of an article in spanish, or reading A.P.I. as "A, period. P, period. I, period." make it so that it works great for some articles, and terribly for others.

I recently tried Pocket's TTS on my iPhone and found it to be pretty good. The person who recommended it suggested downloading the high-quality "Alex" voice, which is around 900MB. I have plenty of room on my phone right now so it wasn't a big deal—but I could see how others would not want to download this voice.

What do you find lacking about it? I've heard (first-hand) it sounds even better on Android. There are offline voices and also live-streamed voices, and it all sounded pretty decent to me.