I didn't know these cues existed, until you mentioned them. The website has some cool designs. Some interesting cues. Thanks for asking about it. Sorry I can't give an opinion.
I have seen a few, good quality. I have never had the chance to hit with one though. If it matters, current USBA champion Pedro Piedrabuena uses an Alcaide cue.
I owned two of them. A matching pair with one being for pool and the other being for carom. Quite honestly they were some of the finest cues I have ever had the pleasure of using. That was 18 years ago. Naturally I cannot vouch for their current cues but those two were incredible.