I love my HoS Capablanca ebony set except 9 of the pieces cracked. I asked them for a quote to replace the cracked pieces and the quote was about $300. I asked them for a discount since the set was fairly new. They basically told me to go fly a kite. They would not guarantee the replacements would not crack also. The set is stored in the box in my climate controlled house. It was disappointing dealing with them. You would think if you are selling $500+ chess sets you can manufacture them to not self destruct. That being said if I could get a set that would not crack I would probably buy another. To be fair this was over 10 years ago when I dealt with them so maybe it is better now.
As an edit both the boxwood and ebony pieces cracked not just the ebony.

I also own a HoS Grandmaster set and it is fine.
I also have never had any problems with their service. If I did receive pieces that were damaged or flawed, all I have ever done is to call them and they always replace the pieces.
Now, if you don't like the design then that is another matter.