In this category, if it's server-side JavaScript one of these:
- Heroku (Node.js beta)
- Joyent Smart Platform
- JGate on AppJet
Heroku is horribly slow, I wouldn't recommend it. Go with Linode, slice host or Rackspace cloud
I have seen this comment before, but I believe it is only valid for free accounts which get swapped out after a short period of no incoming requests. I think that for any paid plan, your app is always loaded so there is no loading request delay. You might want to give it another try with the lowest cost plan and see if your results are different.
Yes I'm referring to the free plan. I don't get it, why let trial users try with a subpar offering, it really is bad for "showing off" what Heroku is. I would put free trials at 30 or 60 days limit and give trial users something to talk about.