Gmail Is a very nice service application. this application is relatively fast than other email websites, this is my personal experience I use this service since last 5 years.
This service is fast mail sent and download email.Because this website have very less number of advertisement on this website. Due to less advertisement the websites loads content very easily using less data. So data is saved and work is also completed fastly.
Gmail provides all attachments like photo, pdf, word doc, power point, etc. Gmail has also very good security password regulation.
I like to use this app. very significant application services.