I have not seen anyone honestly but will doubt it as this is traditional and historic place with dominated Turkish flavor. I seen it in different parts but not here.

Hi! Happy Birthday to your girl. How old is she turning? And what is she into in general?

Hi, Sounds a good price to me and cuts out the hassle. Peter

Totally safe. October starts to get cooler. It will be colder but not freezing.

it is for your own safety , please wear mask

You will have to check the Turkish website to see what their conditions are for traveling in that area. I don't know the answer, but if you are allowed to visit it is a great place to see.

I think that in good hotel like yours you maybe have a organised free service, a car or wan form airport to hotel. you need to ask them. Anyway there is a good option of having bus of Havaist, very well organised but you need to have a Istanbul card with some money for paying or to pay with credit card in bus. You may also organize a private car to take you to hotel which is maybe better than taxi, More safe and sicure and you will not have a trouble with paying which you may have in taxi.

Гранд базар большой, но рекомендую египетский базар, там то же самое, но дешевле.

I assume you are asking if there are hotels nearby. Yes, loads within a 15 minute radius of the square ranging from budget/hostel types to 4* hotels so plenty of choice. Look on this website and you should find what you are looking for.

Мечеть действующая - через специальный вход для туристов - бесплатно, дворец Долмабахче - 90 лир (дворец+гарем) или - 60 лир только дворец и 40 лир - только гарем покупаем билеты прямо во дворце. Айя -София - 72 лиры, покупаем на входе, но лучше взять музейную карту (185 лир), которая дает право на вход более чем в 10 музеев, в т.ч. в Топкапы (Долмабахче не включен) и избавляет от стояния в очередях. Карту без очереди можно купить например в археологическом музее.