Hi Amber,
Some of the pellets nowadays are better than the old ones, but mainly they tend to be a bit too high in protein (tortoises need a low protein/high fibre diet), and have things in them that tortoises would not normally eat (like corn and soy). There are some that are better now though, but if you can feed a fresh diet then that is always best.
Still it's always good to have something on hand if fresh food isn't available, and there is one commercial food that we would recommend. It is called Pre-Alpin Testudo, and it is made from dried meadow grasses and alpine flowers with nothing else added. And it's been observed that the poos of tortoises fed this are just like the poos of tortoises in the wild, so that is a good recommendation. You can buy it in varous places, but the Shelled Warrior's Shop sells them. They come either loose or in big pellets called 'cobs', and you soak them in warm water for a bit and they rehydrate and expand enormously. Here's a link to the page where they are sold:
https://www.shelledwarriorsshop.co.uk/a ... -261-c.asp If you want some, I would get the smallest size because they last a long time.
Nina