I have two, and it is fine, not great. However, you have to wonder how long Apple will continue to support what is currently an 8 year old device with updates.
I wouldn’t buy one today at any price, and I’d go for one of the 4k models, especially if you can find them on sale. You can always move whatever model you buy to a newer TV as you upgrade.
If you’re very price constrained, look for a used model for dirt cheap.