Halo has been an amazing tool for our organization! It's easy, intuitive & powerful at solving problems quickly with little training required from users who have no coding experience or knowledge about programming languages like PHP etc..
I really cannot think anything negative so far as this platform works exactly how it should be working!! If you're looking into getting something which will help manage all aspects related sales process then definitely go ahead by purchasing halo software because they are best out there when compared against others available options currently existing around us today. We've had great success using Halos CRM features within Salesforce but we also use its other functionalities such as Marketing Automation Hubs - Lead Nurture Toolkit- Email Service Integration Tools alongwith various reporting tools including Dashboard Reports/Analytics Reporting Features too among many more things!