Best luxury travel advisors worth the fee?

I stumbled onto a couple of luxury advisor guides this week while researching whether it's smart to use a personal shopper for bigger purchases like watches or handbags. Honestly some of the advice feels generic, like it's copy pasted from ten other sites. But a few sections actually explained the vetting process advisors use, which surprised me. Made me rethink doing everything solo.

Has anyone actually hired a luxury advisor after reading through one of these guides, or is it mostly theoretical for most of us? I keep seeing claims about exclusive access and personalized service, sounds great on paper. But I'd rather hear from someone who's actually paid for it and felt it was worth every penny. Thoughts?

So I've been trying to make smarter choices when it comes to higher end purchases lately, cars, watches, that kind of thing, and I found a guide that actually breaks things down without sounding like a sales pitch. Refreshing change from the usual influencer nonsense honestly. Curious if others have had similar luck finding unbiased info out there.

At this point I've bookmarked it because I keep going back whenever I'm tempted to splurge on something I don't fully understand yet. It's not perfect, some sections feel a bit thin, but overall it's saved me from a couple of impulsive mistakes. Do you guys have a go-to resource before making bigger purchases too?
Luxury Advisor Guide https://www.luxuryadvisorguide.com/ .