Apple's problems are two fold with Homepod:
1/ Alexa Beats SIRI hands down. (And Google Assistant Beats them both). Until they can organise themselves on this Amazon is going to own the home speaker/assistant market.
2/ It's a hard pill to swallow - the expense. I'm sure the sound is great and so on, but then I can plug in a couple of Echo Dots into my existing speakers, enjoy multiroom sound, and a better assistant, alongside a cheaper music subscription service with the same (<>) 40 million songs to available.
Here's an example:
1 Harmon Kardon Go + Play in each room for superior sound - Around £350
2 Amazon Echo Dots 1 in each room - £100 (Currently £70)
To do even that with two Homepods is going to set me back £600.