Since you mention "case cleaning", I'm assuming the M2 Hornady is indicating a vibrating tumbler. Just FYI, the M2 designation is used in description of several of Hornady's offerings such as their digital scale. Anyway, yes, the M2 tumbler is as good as any, probably bigger than you need, but that's your call. All vibrating tumblers operate on the same principle and most use the same inner workings regardless of the name on it. So, one is probably as good as any other (including the Harbor Freight). Let your 'real' needs and costs, rather than perceived needs and cost be your guide. Spend your money on quality media whether crushed walnut shell, corn cob media, ceramics, etc. Some of the newer stuff that includes a 'polishing' agent can give super results.
If you're actually talking about the M2 digital scale, know that the M3-1500 is every bit as accurate down to .1 grain, with the same max weight ratings to 1500 grains, (which you will never, ever need) and is less than 1/3rd the cost of the M2. And a very big plus with the M3 is that it's battery operated and can be used on the tail gate of your truck (or anywhere else) if need be whereas I'm thinking the M2 requires an electrical outlet (but not certain). The best is that the M3 is considerably smaller and less bulky.
Lyman and Hornady are good loading manuals, so are Sierra, Lee, Speer, Nosler, Berger are all good. You should have at least a couple and always compare load recipes across a couple different ones. Also a great load recipe source is 'Loadbooks' USA. They are a collection of loading manuals but only one caliber per soft back spiral wound book.
Almost every bullet, powder, and cartridge manufacturer provides loading recipes at their own web sites and are typically a good resource. There is also many loading manuals, sources across the I-net, but beware that some are uploaded by folks who think they know far more than they really do. Others are fairly reliable, just beware.
Study well and before you load, then load and watch the results carefully. Don't be afraid to make corrections as necessary. If a manual gives you a 'Starting' load, trust them and work your way up watching the results as you go. Just because any book says (?) grns is a good load for 9mm, accept that it may be a good load in their testing barrels and under testing conditions, but might not be a good load in your personally owned barrel.