Agile Crm discussions

i'm considering the freemium option, but what should i know about the limitations? are there any major features missing?

we rely on a few other tools for project management and communication. does agile crm offer integration options?

we're a small team of 5 and looking for a CRM solution that won't overwhelm us. is agile crm a good fit for us?

we're looking to improve our marketing efforts. can someone explain how the marketing automation features in agile crm work?

we're thinking of using agile crm for project management purposes along with CRM tasks. how robust is that feature?