1) Tilda is much more cost-effective. The development cost of a Tilda website is several times cheaper, as custom-coded websites start from €1500. Despite this, almost any idea can be implemented on Tilda
2) On Tilda, you can easily make any changes, such as changing images or text, whereas for a custom-coded website, you will need to contact a programmer again
3) Creating a custom-coded website is a lengthy process, taking at least 1 month
However, if you need a complex, unconventional website or an online store with more than 5000 items, Tilda may not be suitable