There are lots of things that are quite good with SendGrid as compared to other platforms. For example, it is very easy to set up, and it is very clean and simple to use. The email integration is fairly easy, and I can say it is reliable. 

It also allows you to implement services from other platforms as well. So you can have multiple things in a single place. We're using the API. They provide certain add-ons, like Azure add-ons. You can connect with Azure as well.

They have decent support in terms of any issues. 

They have a nice dashboard as well. It gives almost all information in a single place, and it is scalable.  

My integration team likes that it's very easy to integrate and very easy to automate based on activities that happen on our core banking application. The ease of integration with an external application is something that we appreciate.

Also, I like the dashboard. You can check one by one if you need to see the messages that SendGrid sent. That was also a nice feature.

The solution is stable. The performance has been good.

It can scale well.

The most valuable feature is the conditions in automation. At each interval, each email can have something like a condition if a certain contact matches the condition, it will proceed to send in the email under the automation.

The email-sending and validation features are great. 

They've added email validation, which is very, very helpful. We've been able to reduce our use of other third-party validation services.

We find the initial setup to be very easy.

It's quite stable. 

The solution scales well. 

It's comparatively quick and easy to configure as compared to other solutions. For example, Mailchimp is a popular competitor. I find it quite easy comparatively, with less configuration is required. You just need to get the key that's embedded in your code, and you are good to go. 

Other than that, in one of my projects, I use it to import the pre-configured templates and stuff like that. That was pretty easy, and the simplicity was beyond my expectations. We don't use it, particularly in development. However, we had a good experience.

The UI is fine.

It is easy to set up.

I find the solution to be stable.

The API side of things is valuable. It is flexible enough to handle pretty much anything that needs to be done in an automated manner.

Easy API documentation is the most valuable feature of SendGrid, including its deliverability rate.

The solution's most valuable feature is its ability to allow the user to use different components through just one endpoint.

Portability to whatever programming language you are using. RESTful API that can be invoked really easy. We use SendGrid from .NET and JavaScript.
Don't have to think of HTMLs anymore.

Our UX Designers create the templates at SendGrid web, and they give us (development team) the GUID of the new template so we can use them in our applications.

If any modification is needed, we do not have to make a deploy. The UX Designers make the necessary modifications at SendGrid Web and it's done!
The excellent dashboard and information that SendGrid provides at their web of the emails that were sent is a very useful plus.

Their REST API feature is the most amazing and easy API I have used. It's very secure and probably the best API.

SendGrid provides the best analytics a competent postmaster needs. This is not an easy challenge, but if you are really serious about a well-executed mail plan, then SendGrid should be your prime choice.

Other than that, its pricing is fair and you get quality support with the high volume plans.

White-listed mail which avoids spam on mail services like Gmail and Yahoo.