There's not much to say that hasn't already been said by the guy below me. Looks good visually, but it's painfully slow, and promoting never works. However, I set up a timer to see if the lemon mascot works to bring in more customers, and it checks out.
No mascot: 10.34 seconds
Level 1 mascot: 6.77 seconds
Although, It's not possible to make it past day 2, as the in-game hour changes every 12.44 seconds. On day 2, even with a level 1 mascot, the most money you can make is $44, and I didn't even subtract the money needed to buy more lemons.
Overall: Visuals are good, but everything else is not complete

Didn't expect this to be as long as it is so sorry lmao but some constructive critisism I think is needed

The gameplay and text is agonisingly slow, having to refresh the page and going through the start up text and task to start again is tedious when trying to see what strategy you need
The advertising having a chance to fail (I've avg ~50% so far, trying on both Red, Orange, and Yellow) with how slow it is to build up money and how little time they last is also very harsh, means unless you're lucky you have no chance of getting past day 2
Tried green area adverts too and while not having any fails yet it doesn't seem to make sense to buy as it doubles (2 total afterwards) patrons an hour for 3 hours, but costs $10 to do
Also not showing the map while you have an active advertisement is a little odd, would probably help people learn what is and isn't a good time to activate ones in what areas (if it's a day time cycle thing, rather than RNG)
Tried the lemon mascot to start with and doesn't seem to boost sales in any meaningful way (and again, harsh with how slow money is)
There's a bug when getting $9 sometimes that shows it as $90-99 instead (doesn't let you spend as though you had that amount though so purely visual)
Can't say anything about the other upgrades or advertisements as I've not yet been lucky enough to have the seemingly slim rng to line up

It's visually a cute looking game, a little messy in places but visually nice
Can definitely see with some changes it could be a fun game, but currently too slow and too punishing for attempting to spend money/not rewarding enough given the risk

Incredible game but a bit too hard for me, maybe make difficulty choices at the beginning.