I have been playing HotS with a buddy of mine for a few rounds a day now, it’s actually enjoyable when everyone works as a team.
My main issue is the people who try to do things alone, just last night we had two guys attempting to solo rush one lane. They managed to get to the core but in the meantime they ignored all of our signals for help. All the enemies pushed a single lane with siege and bruisers. It was impossible to stop them as it was 3 Vs 5 plus they had the Mercenaries. Needless to say we lost the game and the two pushers blamed our bad defense.
This is one thing you don’t see in LoL, everyone is a team. This is the main reason HotS will always be second best when it comes to current MOBA’s.