Event Calendar: Tickets & RSVP

I just started using Event Calendar App a few weeks ago. I find it easy to use and it incorporated well into my Shopify website. The ticket purchasing is smooth and my customers seem to navigate it easily. There are a few things that I would like to see added such as customers being able to purchase multiple tickets at once and also I am unable to put a limit on the amount of tickets sold. I have had a good response from Alex and he is very responsive to my emails. I have not had any resolution to my above mentioned concerns, but Alex assures me that he plans to work on them. I only brought them up to him a day ago. Overall I am very happy with this app. I hope it continues to be a benefit to my website and sales.