Every time I look at the syntax, it feels really verbose. IIRC some dialects require all caps or initial caps on keywords; at any rate that's how most examples are shown, and it's rather off-putting. Superficial, I know, but I'm probably not the only one.

I don't know about other implementations but FreePascal is completely case insensitive. Identifiers are actually treated the same if the only difference is case. I don't particularly like this, but I've never seen it actually be an issue