I'll go against the grain, and say it's way better than the old pointless friendlies.
The relegation/promotion format has added some jeopardy.
To win a trophy, we have to play the best teams regularly, and learn how to beat them. Spain, Italy, Germany, France etc.
We now need to get promoted to get back to playing those teams. So, there's actually quite a lot riding on the next few matches. Particularly against Greece.
Give me this over the mind numbing crap you used to have against Lichtenstein with 8-10 substitutions in the 2nd half. That was a complete farce.
Don't think the Nations League gets the credit it deserves. It helps some of the smaller Countries qualify for Tournaments. It's not perfect, but at least they tried to do something to increase the competitiveness of the international calendar.