+2
I cannot think of a time in the past 20 years when I have been wrong on my first impression of a component/speaker after trying it in my system. Sometimes in the "first 5 minutes" and certainly within the first couple of days.
There have been a couple of times I deluded myself into thinking I liked something based on its reputation or what it cost but in every case I always circled back to my first impression being the correct one for me. Embarrassingly, in some cases this took months or years but I have become more confident in trusting my gut (i.e., first impression). @mijostyn provided some good advice to "beware of two traps, the cool looking trap and the costs more trap."