The best thing about netmara is that it integrates with all of my email marketing products so I can see exactly which campaigns are being opened in what types devices/channels- this makes me feel more confident than ever before! Sometimes when you have multiple clients using different tools they don't always sync up perfectly (especially if one client moves their account over at some point).
We've noticed less issues since we switched our main tool from Hubspot back last summer though still use both - sometimes things take time :) If your looking for something super robust then try out other options first but there's no reason not give them another shot as well especially considering how easy the service has been overall once set up correctly.- Realtime data insights into open rates across channels / emails sent through platforms like MailChimp etc.