NOR flash devices are easier to handle as compared to NAND devices. One drawback of NOR devices is slow erase.
A conclusion from this document:
Use of NOR devices is widespread in the industry. They offer an easy memory interface and are suitable for code execution, making them ideal for devices that do not need data storage. Their architecture makes them a good alternative in the range of 1MB to 4MB. NOR offers good read performance but poor write and erase times, disqualifying it from being used as a data storage device. However, as today’s devices become more and more sophisticated, they are expected to offer more features, richer programs and store more information locally. This requires larger capacities, both for code and data storage, and considerably faster erase/write times. NAND offers all of this, plus better prices in capacities ranging from 8MB to128MB. However, most engineers are reluctant to use it due to its non-standard interface and complicated management.
Although NOR flash is not recommended for data storage (fast R/W), it's simplicity to interface can be a boon for small designs that do not require fast R/W performance.
Overall, to answer your question yes, NOR flash is OK for your usage scenario. If your system will be powered up all the time, you can also use SPI RAM for faster R/W.