I was the DM for the first of three test sessions last Friday night using Lost Mine of Phandelver from the Starter Set box and it went pretty well.
6 1st-level PCs in the party:
Elf Fighter Gladiator
Half-Elf Rogue Spy
Human Warlock Criminal
(Starter Set pregens:)
Hill Dwarf Cleric Soldier
Human Fighter Folk Hero
Elf Wizard Acolyte
(Spoilers)
The
 party was ambushed by the goblins, found the goblin trail but set off 
again for Phandelver (the Warlock and Human Fighter went below 0 HP and had to make death saves). Went to the Shrine of Luck, learned of the banshee Agatha and 
Cragmaw Castle from Sister Garaele, and spent the night at the inn. The 
next morning visited Daran Edermath, the retired elf adventurer, and 
found out about Cragmaw Caves, and then killed the four Redbrands at the
 Sleeping Giant. Leveling up next session, and they have clues for 
several different avenues to pursue.
I need to study up on the 
pre-gen background connections to events in the adventure, and another 
look at the Basic Rules so I'm not following any preconceived ideas from
 past systems.

 
 
