Has anyone successfully implemented CRM Mobile whether using the mobile app or mobile web ?

We're researching how to best roll out our CRM content to users via mobile devices, but I've yet to find many successes where others have done this.  Also we're not having much luck in testing links using ms-dynamicsxrm to create ties back into the mobile app from email and such.  Is this a path worth going down or would it be better to create our own web-based app or even using SharePoint BCS and OData to integrate this into SharePoint since Share Point Mobile is kinda tried and true.  We're using CRM 365 On Prem.

Thanks for any thoughts or advice.