I streamed this on NF tonight and it was much better than I thought. It's not great, but it deals with the publication of the poem HOWL and focuses on that. Meanwhile Franco reads much of the poem throughout the film. Again, not a great film (I don't think AG is really that 'deep' of a character to result in a great film) but better than the typical Beat shit.
Franco does sound an awful lot like him. AG's poetry was either excellent at times or very shitty--there's not much in between.