It's impossible to say what "Good" is, except as Mr Mallory posted "that you are satisfied with the bonus, and royalty". Earlier I shouldn't have posted "In general it sounds like you have a good offer." This is because it always depends on where your minerals are located, and what is happening in that area at the time you lease.
So it isn't correct to say what a lease is worth "In general". The value can vary week by week, and will vary based upon the county they're located in, the Township & Range, and sometimes even by Section. In some areas of WY or MT, $50 per net acre and 3/16th can be a very "good lease". Though in some areas here $500 per acre and 3/16th can be far too cheap.
Everyone above has given you sound advice. Since you're unfamiliar with the process take your time before you sign. Do as much research as you can about your immediate area. If possible show your minerals to at least one other company, or more. Review and understand the important terms to include in your lease such as a "Pugh Clause". Ask the company questions about their intent. Then depending upon how many mineral acres you own consider hiring a WY attorney to represent you in the lease process. Good luck!