Good software, bad marketing. Bait-and-switch (beware).
While Freshdesk has a great UI, and is a feature-rich service, the truth behind the advertising leaves much to be desired. While their software is good, the pricing model isn't, and their marketing is intentional bait-and-switch. The features listed on each pricing tier are expanded upon here: freshdesk.com/features. Once you buy, and ask what's up, the support will tell you to upgrade for that feature, and link you to a page that isn't linked to from anywhere on their site: freshdesk.com/helpdesk-features, as justification.
As an example, $15/agent/month includes, "SLA Management," which is described from their features page as including every SLA feature, including basic things like SLA email notifications, reminders, escalation policies. You know, what anyone would think of as "SLA Management." However, none of those features are actually included in that price plan. To even get email notifications of SLA violations, or have your SLA respect office hours, you'll have to pay $50/agent/month. Worse, there is no way to discover this until after you've paid and spent time getting everything set up.