Anton R.

Booked a one-day car rental at LIH airport (Thrifty is the actual car supplier) well in advance of my trip. The reservation was fully pre-paid and even said "Pay at pick-up: US$0.00". When arrived at the car rental location was told that I still need to pay them (Thrifty) extra taxes - a sales tax and some other tax, in total ~ US$25.
While the amount is relatively small, the issue is that Trip.com didn't tell me (at the time when I was making the reservation) that there will be additional charges to be paid directly at the car rental location, so that I can make a [fully] informed decision whether or not I like the deal.
I didn't experience this kind of problem with other travel agencies or car suppliers.

On two separate occasions booked a rental car thru Rentalcars.com, actual car supplier: Alamo and Enterprise. Each time easy and honest experience with no 'hidden fees' surprise like with some other travel agencies and rental car suppliers.

I've been using USGoBuy reship services on several occasions. So far my experience with them is very good, including communicating with their CS, which was quick to respond.
I only recommend avoiding the two least expensive regular (non-express) DHL shipping methods as using these may result in excessive delay and even return of your shipment. This happened to one of my shipments and I lost the shipping fee that I paid, however USGoBuy offered me a store credit that covered half of my losses even though it was not their fault.

Until the pandemic, Expedia was my #1 choice for anything travel-related, but not anymore!
A few months before the pandemic, I made a mistake of paying for a flight thru Expedia.ca instead of buying the ticket directly on the airline's website. The flight was eventually cancelled by the airline due to COVID-19 restrictions. Expedia declined to issue a refund citing that the airline 'didn't approve the refund'. The airline refused to help me citing that 'you should contact the place that sold you the ticket'. So, I ended up in a classic catch-22 trap.
Long story short: Expedia snatched my money for a service that was not provided and refused to return the money. In layman's terms this is fraud. Be smart with your money and avoid dishonest companies like Expedia!