Most of the replying posters won't be American, so don't base the results on that
I think it is a good thing: NATO is low maintenance and helps regional security, essentially reducing any inter-NATO dispute to the 'major' powers discretion and any dispute between a NATO and non-NATO member to, well, the NATO members get their way.
I'm a little concerned about the wealth disparity, particularly in Bulgaria and Romania, that may make it difficult for them to maintain the quality and level of military spending to be less of a protectorate and more of a partner.
I'm also a little worried that some of the countries may 'backslide' in their development towards democracy and capitalism. I think a self-styled dictator, real or de-facto, in any of these countries could create a difficult position. Democracies can take decades to secure their ways, so though these countries have done well, not all of them are out of the woods (and some aren't doing too fantastic).
Overall, I think it is a good thing. Hopefully, the NATO moniker will become a relic, and instead be replaced by a global combination of like-minded state with a willingness to defend one another's continguity.