I have had a Sears Craftsman 19.2v combo kit for around 20 years. It is a part of their "C3" system. It originally came with NiCad batteries, which sucked. It got a new life when Sears released compatible Lithium Ion batteries and a new Lithium Ion charger that work with the C3 tools. I think these 19.2v C3 Sears Craftsman tools must have been very popular, because they still make the batteries and other accessories still available. They still make tools that work with the system.
My old kit comes with a drill driver, circular saw, reciprocating saw, staple/nail gun, and a fluorescent tube "trouble light". The light is far more useful than a simple flashlight because it can light up a large area. I use all of the tools frequently except for the staple/nail gun, which I use on rare occasions. The kit lives in its original, plastic case in the garage, but the batteries live in the house so that they are not exposed to extreme heat in the garage during summer. With all the tools inside the case, it is too heavy to move around comfortably, but it keeps the tools organized. I normally carry the separate tools from the garage to the site as I need them. As the "home repair specialist" for our small family, I really like that Craftsman combo kit. Every tool uses the same battery, and they can handle any job I have thrown at them (so far).
(I keep a separate lightweight cordless Hitachi drill driver inside the house. I use it all the time and highly recommended it, model #DS 10DFL, now DS 10DFL2. It is not nearly as capable as the heavy Craftsman drill, but for light jobs, it is much better. I like that the package comes with a spare battery. My spouse knows not to EVER put anything on top of it in the hall closet, because I use it so often.)
Combo kits like my Craftsman set are definitely NOT woodworking tools. I have used them for small carpentry jobs (room addition, pool shed, etc.) but they are not designed for professional carpentry either. They work best as a "medium/heavy duty" cordless tool set for home repairs and light carpentry work. They cannot compete with "real" corded tools, but they are not slouches, and their simplicity and portability make up for it. I suppose that the circular saw and hand drill can be used for basic woodworking until you are ready for a table saw and drill press.
A cordless combo kit will not get you closer to your woodworking goals, but can be very useful for home repairs. The fact that they share the same batteries and charger is a major bonus, but it is also a "lock in". The alternative may be: Are willing to live with many different brands of batteries and chargers, which can be a big mess?
If I were on a very limited budget, I would temporarily forego my woodworking hobby and buy the home repair tools. I can live without woodworking (I suppose), but I gotta keep the house going.
If you buy cordless tools, remember to budget for blades, bits, and replacement lithium batteries, which can give sticker shock. You will need at least two batteries, so that you can put one in the charger and keep working. I have a thin, lightweight battery that is good for small jobs but does not last very long, and a larger, longer lasting battery. The combination of small and large works okay. Lithium batteries are light anyway, so I might have been better with two large batteries.
Do not buy any tool that runs on NiCad batteries. Be careful to check, because the NiCad tool makers try to hide the fact that they are giving you cheap, useless NiCads instead of more expensive, better, longer lasting lithium ion batteries.