You should give it a try . I have a 30-day trial account and spun up a couple of services. Well the UI is cool , and there are a lot of templates ( boiler plates ) that you could use to get you app up and running. But you might struggle with respect to documentation depending on what services you use. A lot Watson stuff is in Beta ( you could see it when you login to Bluemix) - and you might have troubles with them.