Agree 100%. Additionally, unless you also ship with substantial APIs, you'll be a nonstarter in the enterprise market, which demands interfaces to other systems (perhaps including code reviews, static analysis, source control (Git[hub], SVN, etc), ticketing, labor/time tracking, resource planning & allocation, SQA testing & validation, human resources, and whatever standard auth (SAML, OAuth, OpenID, LDAP)).
Your pricing is also too high for a large org, especially when one could use something like Phabricator for free. This doesn't even get into MS Project or document management (MS Office? Google Drive?).
Long story short, this looks like a good start and may work well for SMBs, but definitely not a big company.
Just as an aside, my company has just spend several hundred thousand dollars licensing a well-known product & portfolio management (PPM) app. Not surprisingly, all the project managers were 100% in favor of this spend. Also not surprisingly, all the apps management were against it.
Also as an aside, in most large companies, PPM is handled 100% separately, and by different people, than actual product management and dev planning/resource allocation/bug fixing/testing/support/etc.
Be careful with interfaces and enterprise clients. They are both very slippery slopes at first and generally unnecessary unless you're really targeted there (which it appears you are not).
Your pricing is also too high for a large org, especially when one could use something like Phabricator for free. This doesn't even get into MS Project or document management (MS Office? Google Drive?).
Long story short, this looks like a good start and may work well for SMBs, but definitely not a big company.