Over the years I've had the opportunity to try many different email marketing services while supporting my many clients. One thing you'll really learn as you support your clients is how good the customer support is for these services.
Aweber has always stood out to me because they not only offering a great product that they are continuously improving upon but the awesome customer support they provide.
Customer support isn't available 24/7 which is okay because I don't work 24/7 for my clients. I work a normal workweek, Monday through Friday, most of the time so they're availability works great for me. They offer multiple ways to receive support. Currently, you can get support via chat, email, and phone. They are easy to understand and seem to always understand me and what I need help with.
They also have a great knowledge base with instructions, videos, training materials and regularly offer webinars.
I can't say enough good things about Aweber.