Well the war did re-unify Vietnam so probably not TOO bad
Reunification is not always a good thing. What do you think would happen if Commie North Korea "reunified" with South Korea? https://www.google.com/publicdata/explore?ds=d5bncppjof8f9_#!ctype=l&strail=false&bcs=d&nselm=h&met_y=ny_gdp_pcap_cd&scale_y=lin&ind_y=false&rdim=region&idim=country:VNM:THA:LAO:KHM:IDN:MYS:KOR&ifdim=region&tstart=767595600000&tend=1524978000000&hl=en_US&dl=en_US&ind=false
Same graph without Korea
Utterly corrupt Vietnamese Commies have been running Vietnam's economy to the ground, even after 1994 when US lifted embargo (see graph), continued to be the 3rd poorest nation in South East Asia, just barely above Cambodia and Myanmar, for almost half a century, even being surpassed by Laos.
So proud, right?