>>359945681
Not hard at all and I prefer to do all my animator controllers by hand as it allows me to tune it for very specific behaviours I want to have that a generalized tool doesn't really allow for. 
>>359998835
because its dead simple if you just want the simple shit sdk2 had? If you wanted more complicated stuff on sdk2 you had to do horribly janky workarounds. Sdk3 actually allows users to create "cool" avatars with a properly managed workflow. Try not being a brainlet.