Hi Diabolika,
Just a few suggestions as I get caught up:

Personalized Travel Experiences

Great as is.

Local Knowledge

.... Our travel experts have explored and thoroughly investigated all destinations and services featured on our tours to ensure that we only offer the best quality services for our clients. We will never take you anywhere a local would not choose to go.

(If you prefer the tenses as they were, you need to take the 's' off investigates, but present perfect then simple present is better I think.)

Attention to Detail

Our experienced guides and trip designers collaborate for weeks before your arrival to ensure that everything is taken care of down to the very last detail. From the first welcome to final farewell, every part of your itinerary is customized to your wants and needs. With us, details are everything. We do our best to make sure that your trip will be seamless and pleasurable.

Organization

We have carefully chosen our partners based on the quality of their services, sustainable practices, and personal approach. We make sure that our clients and the local communities can connect with each other to create a rich and memorable experience. With us, a traveler will experience unparalleled access to the best the local community has to offer.

Originality

Unlike other tour operators that offer pre-packaged tours, we provide fully customized itineraries and personalized experiences made just for you. We are the best at what we do and no other tour operator can compete with our quality of service. We are constantly expanding our list of possible destinations and creating special experiences to make your trip a once-in-a-lifetime experience. We don't settle for less than the best, and neither should you.

Cheers,

CZ