Certainly the synod has made decisions of late that mirror other liberal church bodies in which it could be labeled "liberal protestant", although as I Lutheran I do not consider myself protestant. It also depends on what you consider Lutheran I suppose. I say that since he would not be the first one to say the ELCA is not "Lutheran", but I would disagree. While it does at times follow trends that are more on that liberal protestant spectrum, it still considers Lutheran theology at its core, it still teaches and is guided by the Lutheran Confessions, and Justification by Faith is still its central doctrine. It would certainly be considered probably more "pietistic" lutheran in its demeanor.
I also would note that ultimately the synod is not simply "liberal" but more appropriately diverse. And what many people not in the ELCA do not understand is the great disconnect between the hierarchy and the congregation. What the synod decides often in no way affects the congregational level. Two recent decisions to illuminate this would be on gay marriage the assembly said since there was no union for it layed out biblically they could not expect it of the churches (in favor of a more conservative view), but they encouraged each congregation to decide how it chooses to minister to gay couples thus allowing those who would still like to marry gays, the freedom to (for the liberals). The new statement on sexuality that is being proposed to the assembly this summer uses the concept of 'bound conscience" to allow each group to hold to various convictions on the matter.
What this means is that stereotypes of the ELCA (as in truth of any denom/synod) do in no way show the true picture or prove anything. As you encounter various ELCA lutherans in this forum you can see the diversity in them. Ultimately, if you have interest in the ELCA, you need to contact them and meet them in your area. Only among God's people can you ultimately know how the Spirit is working among them.
I would encourage you to consider the ELCA, but you sound as if you already have received a warm welcome to the LCMS and I urge you to consider how God is calling you in your interactions.
Blessings on your faith journey,
Pax