Funny. My first impression when I opened the box was that Librem 5 is not at all so thick and heavy. I compared to my Moto G6 and the only difference is that it is a little bit thicker. But reading the terrible noise about how thick and heavy it is I expected much more. I suppose that people are comparing to those extremely thin phones - not to medium size phones like Moto G6. Compared to my old Nokia N900 it is even thinner but has a larger screen. But everyone has his own taste.
I really like the sturdiness of Librem 5. I use my phone in the forest and I would be very nervous with a thin phone. I cannot tell how it compares in other respects yet but it was important to change the settings of the TP-link C7 router to 20 MHz bandwidth to get a stable connection - it was useless with the auto setting. And the date setting was OK once I realized that I had a Swedish SIM card and set the time zone to Stockholm. Because you nowadays can use your SIM cards in the whole EU it is important that you are careful with the settings.
The phone antenna seems fairly good but I have to check the WiFi antenna because I have poor signal even close to the router.
But it is nice to have Debian in the phone (as I have in all computers). Almost everything is familiar except Gnome which I have never used. I suppose it will take some time to learn all the quirks …