It's easy to use with all your data at hand so you can manage everything from one place! I dislike that it doesn't support multiple companies or more than 1 office per country - which makes sense but would be nice if they supported this feature soon as well? There are some other features missing too like automatic invoicing (for example).
We've been using peak work since 2014 without any problems until now when we noticed an error message pop up after updating our system last week saying "error while loading page". This made us panic because of course no business should have downtime due issues within their own systems!! Luckily there was nothing wrong though just needed time before things got back online again- otherwise very good solution especially considering how cheap its price tag compared even against competitors costing many times what peake works costs alone every month.